The building blocks of cells involved in all essential life functions (e.g., cell growth, energy production, metabolism). Enzymes are a type of protein.

A combination of chemicals that are essential for all living cells.

One of the three main constituents of foods. Proteins are made up of amino acids and are found in foods such as milk, meat, fish, and eggs. Proteins are essential constituents of all living cells and are the nitrogen-containing nutrient. The calorie content of protein is four calories per gram.

body-building nutrient.

extra vitamins and minerals put into animal food.

Molecules composed of one or more chains of amino acids. The sequence and composition of the amino acids in the protein chains impart different functions to different proteins.

A chemical compound that is an essential part of every cell. In order for living things to stay alive, they must have protein. Proteins repair damaged cells, build new tissues, and do many other jobs. Proteins contain the chemical elements carbon, hydrogen, nitrogen, and oxygen.

Chemical building blocks of cells that are produced by genetic information encoded in RNA molecules.

the essential components of muscles, skin and most of the body. Proteins are usually large molecules composed of chains of amino acids in a specific order that is determined by the DNA sequence of a gene. Proteins are required for the structure, function and regulation of the body’s cells, tissues and organs. Almost all disease is caused by the production of or lack of certain proteins.

A substance made up of amino acids that contain approximately 16% nitrogen (based on molecular weight).

A chemical structure composed of one or more polypeptides. In photosynthesis proteins serve as the scaffolding that hold the cofactors that gather light energy, transfer electrons, and catalyze biochemical reactions.

Any of a large group of complex, organic nitrogen compounds. Each is made up of linked amino acids that have the elements carbon, hydrogen, nitrogen, and oxygen. Protein is the main building material for muscles, blood, skin, hair, nails, and organs. It is also needed to form hormones, enzymes, and antibodies.

a type of organic compound which contains carbon, hydrogen, oxygen, nitrogen and sulphur. Proteins are found in all viruses, bacteria, plants, animals and fungi. They include enzymes, hormones and antibodies.

Large molecule produced by the cell using the information contained in a gene.

One of the three nutrients that supply calories (energy) to the body. The protein we eat becomes a part of our muscle, bone, skin, and blood.

A compound formed from a chain of amino acids. Proteins are present in all living things, and are used for enzymes, hormones and other essential molecules.

Protein is a nutrient found in food. Proteins are required for growth, development and healing of the body. Proteins are composed of amino acids. Our body can make some amino acids, while other amino acids can only be obtained from food. The amino acids our body can make are called "nonessential" because it is not so important to get these acids from food (they can be synthesized by the body). The amino acids that can only be obtained from food are called "essential". The body cannot make them, which is why it is important to eat a variety of protein foods. Proteins may be found in meat, poultry, eggs, milk, beans and nuts. Foods like grains, fruits and vegetables contain very little amounts of proteins. Reference: Medline Plus Medical Encyclopedia: Proteins

Proteins are a source of heat and energy to the body. They are essential for growth, the building of new tissue, and the repair of injured or broken-down tissue. They form an integral part of the protoplasm of every cell.

A complex molecule consisting of a particular sequence of chains of amino acids. Proteins are essential constituents of all living things.

The building blocks of cells involved in all essential life functions (e.g., cell growth, energy production, metabolism). Pruritus: Itching.

Any of a group of complex organic macromolecules that contains carbon, hydrogen, oxygen, nitrogen, and usually sulfur, and composed of one or more chains of amino acids, and include many substances, such as enzymes, hormones, and antibodies, that are necessary for the proper functioning of an organism.

Any one of a group of complex organic nitrogenous compounds that are the principal constituents of cell protoplasm.

A linear biomacromolecule synthesized by ribosomes and consisting of a chain of amino acids in peptide linkage. Intracellular proteins have structural, regulatory, and catalytic functions; proteins secreted by cells have, in addition, intercellular signal

A biological polymer formed by condensation reactions among a set of 20 different amino acids.

a large molecule made up of a chain of smaller units called amino acids. Proteins serve many vital functions within and outside of the cell.

A complex organic molecule formed from chains of amino acids, which are themselves formed from combinations of certain atoms, namely: carbon, hydrogen, nitrogen, oxygen, usually sulfur, and occasionally phosphorous or iron. Additionally, the chain of amino acids "folds in on itself" forming an extremely complex three-dimensional shape. Organic molecules have a number of useful properties, not the least that their structures are intrinsically "self healing" and reject contamination. Also, in addition to being extremely small, many organic molecules have excellent electronic properties. Unlike metallic conductors, they transfer energy by moving electron excitations from place to place rather than relocating entire electrons. This can result in switching speeds that are orders of magnitude faster than their semiconductor equivalents.

One of the three macronutrients, protein is an energy yielding nutrient that contains 4 calories per gram.

a molecule, encoded by DNA and RNA, which is responsible for control of cellular functions

A large number of amino acids chemically bonded in a chain. Proteins are large peptides.

amino acids linked together to form enzymes, structural proteins, or muscle.

polypeptide or group of polypeptides folded into a stable conformation. (This definition does the importance and elegance of proteins no justice; they are perhaps the single most important group of structures in the human body, carrying out hundreds of specialized jobs and functions, all of which are too complex to mention here.)

Proteins are macromolecules made up from 20 different amino acids, also referred to as residues.

a component of living cells necessary for the proper functioning, growth, and repair of tissue

Essential components of all living cells that allow a body to function work well (including enzymes, hormones, and antibodies). Proteins are essential in the diet of animals for the growth and repair of tissue.

The major macromolecular constituent of cells. A linear polymer of amino acids linked together by peptide bonds in a specific sequence.

A molecule composed of amino acids that carries out the work of the cell. The proteins manufactured by the genes are responsible for all structures and functions of living cells from eye colour to muscle function.

A group of compounds that are the main components of a cell.

A relatively large polymer of amino acids. A polypeptide that is large enough to have an extensive secondary and tertiary structure.

A protein is a molecule which is a long chain (a polymer) of amino acids. The chain may be coiled up, but some proteins are shaped more like ribbons or sheets. (A few proteins, like hemoglobin, are actually several chains. And there are some stranger cases.)

A complex polymer made by linking together amino acid molecules. Proteins sometimes contain non-amino acid components such as metal ions or porphyrin rings embedded within.

A molecule consisting of one or more long chains of amino acids linked in a characteristic sequence.

A large molecule composed of one or more chains of amino acids. Protein is one of the three types of nutrients used as energy sources by the body, the other two being carbohydrate and fat.

A large polypeptide with a complex structure; examples include enzymes and structural proteins.

Genes contain the instructions for building proteins, the large molecules that serve as the body's building blocks, signaling agents and catalysts.

large molecule composed of hundreds to thousands of amino acids joined together by peptide links making up the DNA molecule.

Substances which are major components of the body structure, essential to body function. They are made up of smaller units called amino acids.

Combination of any 20 amino acids into a compound that facilitates biochemical reactions or provides structural support for an organism. Examples are albumin, collagen, hemoglobin, and osteocalcin.

Proteins are what keep your body tissue healthy and replace old or damaged tissue. Each day, protein must be included in the diet for you to stay healthy. There are two kinds of protein found in foods: animal proteins and plant proteins.

Compounds of amino acids that make up most of the body's cells and perform other physiological functions.

A group of compounds which occurs naturally in plants and animals and other organisms. Proteins provide the structures essential for the growth and repair of animal tissue.

Dog Food ] Protein provides amino acids essential for maintaining tissue and organs. Coat hair is 95% protein. Skin cells are made up of protein and fats. The Whole Life supplies your pet with the protein needed to maintain strong bones and muscles.

a complex biological molecule that may act as a structural element or may assist biochemical reactions

A large molecule composed of one or more chains of amino acids (the building blocks of proteins) in a specific order and a folded shape determined by the sequence of nucleotides in the gene encoding the protein; essential for all life processes.

An essential part of all animals and plants. Milk contains 3-4% protein (casein).

made up of a chain of amino acids, and has a specific 3D shape that defines its job.

Proteins are nitrogen-rich compounds that are formed from complex series of amino acids. They are fundamental to many of the processes of life, and are the fundamental building blocks for much of the substance of cellular and non-cellular life

The product of gene expression. Proteins are the molecules that do much of the work in the body such as creating structures, utilising and storing energy and transmitting signals.

A complex substance made of amino acids and which include many compounds necessary for life like hormones, enzymes, and immunoglobins. Proteins are found in cells and tissue. The type of protein depends on the kinds and number of amino acids that make it. Proteins are used in building cells, cell functions, muscle contraction, digestion, growth, etc.

A type of molecule produced by the body. The instructions for producing proteins reside in the genes.

A substance which forms the structure of most cells and enzymes.

one of the chief constituents of living matter; consisting of a chain constructed from 20 amino acids made from carbon, hydrogen, oxygen, nitrogen, and sulfur.

a biological polymer of amino acids; any peptide with more than 100 amino aicd residues.

large molecule made up of many amino acids chemically linked together by amide linkages. Biologically important as enzymes, structural protein and connective tissue.

Amino acids that contain all or in part carbon, hydrogen, nitrogen, oxygen, sulfur, phosphorous, iron, etc., living cells, nitrogenous substances as found in animals and plants.

Substances that consist of amino-acid residues joined by peptide bonds. Many essential biological compounds such as enzymes, hormones, or immunoglobulins are proteins.

The product of the genetic information encoded in a gene. Proteins are made up of amino acids; enzymes are one type of protein.

any of a group of organic compounds composed of one or more chains of amino acids. Common sources of protein are meat, fish, nuts and pulses.

a large molecule containing one or more chains of amino acid

Most genes contain information for the synthesis of proteins. Proteins are a class of molecules which perfrom many functions in the cell, contributing to structure, signalling between cells, and many chemical reactions.

One of the important constituents of plant and animal tissues containing carbon, hydrogen, oxygen, nitrogen and frequently sulphur. In wheat, protein is important for baking and nutritional qualities.

An organic nitrogenous compound that is the major source of building material for muscles, blood, skin, hair, nails and the internal organs. It is made up of amino acids that have the elements carbon, hydrogen, nitrogen and oxygen. Some are also made up of sulfur, phosphorus, iodine, iron and other necessary elements of living cells.

A dietary element essential for the building of muscle and other tissue in all animals.

Large molecules constructed of smaller biological units known as 'amino acids'. Proteins are responsible for majority of the function and much of the structure of living things, including humans

A molecule composed of one or more polypepticle chains. May or may not contain prosthetic groups.

Any of the highly complex nitrogenous organic compounds. They are synthesized by plants and are a chief component of living matter.

A large food group that is essential for the proper development and maintenance of most of the living parts of plants and animals; proteins are necessary for life and are supplied by meat, fish, eggs, milk and other foods.

One of the substances containing nitrogen necessary for tissue growth and maintenance of the cells of animals and plants. Protein is made of amino acids.

Proteins provide the amino acids that are needed for the repair and building of body tissue. Especially necessary for the proper growth of a new baby. Sources of protein are commonly found in milk, eggs, cheese, fish, meat, beans, and some vegetables.

A molecule consisting of a chain of amino acids. A major source of the building materials for tissues (e.g. muscle, blood), enzymes, receptors and many other body components.

a large organic molecule composed of more than 40 amino acids chains organized ("folded") into complex structures; required for the structure, function, and regulation of cells, tissues, and organs; molecules of fewer than 40 amino acids are called peptides.

The "building blocks" of our bodies that contain substances such as hormones and antibodies to regulate body functions.

A macromolecule comprised of one or more polymeric chains of amino acids.

The primary component of cells.  A string of linked amino acids whose order is specified by a gene.  Proteins build up most of the structures in cells and act as little machines that work together inside of cells to accomplish most of the things cells do.

A complex molecule made of amino acids. Proteins are found in all organisms, and are responsible for the majority of biochemical reactions that are essential for a system to function properly. Proteins are often involved in enzymatic reactions and signal transduction. In diseases, including cancer, proteins can have alterations that prevent them from either forming or working properly. See also Peptide, Peptide Bond, Proteomics.

Any one of a group of complex organic compounds containing nitrogen; formed from various combinations of amino acids.

A component in foods, made up of amino acids: A very large molecule that is required by humans for proper growth and maintenance.

('prO-"tEn) — large, complex molecules made up of smaller subunits called amino acids. Proteins perform most life functions and make up the majority of cellular structures.

(pro´ teen) [Gr. protos: first] • One of the most fundamental building substances of living organisms. A long-chain polymer of amino acids with twenty different common side chains. Occurs with its polymer chain extended in fibrous proteins, or coiled into a compact macromolecule in enzymes and other globular proteins.

Living cells contain many molecules that consist of amino acid polymers folded to form more-or-less definite three-dimensional structures; these are termed proteins. Short polymers lacking definite three-dimensional structures are termed peptides. Many proteins incorporate structures other than amino acids, either as covalently attached side chains or as bound ligands. Molecular objects made of protein form much of the molecular machinery of living cells.

An essential component of all living cells that is made up of amino acids.

One of four food sources that supply energy. Protein provides 4 calories per gram. Proteins are essential to the processes and structural integrity of body tissue and its growth, repair and replacement.

A compound composed of carbon, hydrogen, oxygen and nitrogen arranged into amino acids linked in a chain, responsible for building and repair of tissue, hormone production and enzyme function.

substances made up of long chained three-dimensional molecules that are an essential fabric of all living organisms. Proteins produced by DNA are in effect the information coded in DNA translated into flesh and blood.

Molecules that are made of amino acids. They are found all living organisms and are essential for the growth and repair of animal tissue. Proteins are needed in the diet; they are broken down into amino acids which are absorbed, and rebuilt to form new proteins in the body. JKL NO QR WXYZ

Groups of amino acids that are required to build and maintain body tissues for hormone production and enzyme function.

A complex biological molecule composed of a chain of amino acids. Proteins have many different functions: structure, movement, catalysis, transport, regulation of cellular processes, and response to stimuli. The information for making proteins is stored in the sequence of nucleotides in the genome. ( see also)

A compound that is an essential part of plants and animals.

The building block of cells and animal tissues. Also available as a second line energy source after carbohydrates and fats. Made up of subunits called amino acids. Contain 4.1 Calories per gram of weight.

A complex biological molecule composed of a chain of units called amino acids. The information for making proteins is stored in the sequence of nucleotides in the DNA molecule.

a macronutrient, composed of amino acids, required by the body, responsible for building most body tissues.

The principal constituent of all cells, essentially consisting of combinations of amino acids and peptide linkages.

A large organized molecule composed of one or more amino acids chains. The order of the amino acids is determined by the base sequence of nucleotides (base pairs) in the gene coding for the protein. Proteins are required for the structure, function, and regulation of cells, tissues, and organs. Hormones, enzymes and antibodies are proteins.

A type of molecule occurring in all living things. Proteins are made from about 20 basic units (See amino acid). There is a huge variation in protein size and function depending on how the units are put together. The instructions for how to assemble proteins are usually contained within DNA molecules. Within cells, proteins carry out most of the chemical functions necessary for life – for example, building other proteins, carrying out chemical reactions, controlling what enters and leaves the cell, making structures, controlling the expression of genes.

a polymer built of different subunits (amino acids), which is a fundamental component of all living cells, including substances such as enzymes, hormones, and antibodies.

nutrient comprised of nitrogen, oxygen, carbon and hydrogen. 4 Kcal/gram.

any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form, composed of amino acids linked in a genetically controlled linear sequence into one or more long polypeptide chains, the final shape and other properties of each protein being determined by the side chains of the amino acids and their chemical attachments: proteins include such specialized forms as collagen for supportive tissue, hemoglobin for transport, antibodies for immune defense and enzymes for metabolism.

Substance obtained from food which builds, repairs and maintains body tissues. High sources of protein are mainly from animal foods. to top

Large molecule composed one or more polypeptide chains, and often additional chemical factors. Proteins serve as structural building blocks, as enzymes that catalyse the biochemical reactions of the body, and as transmitters and receptors of most of the chemical signals within and between cells.

A large biological molecule composed of amino acids arranged in a specific order determined by the genetic code and folded into a specific three-dimensional shape. Proteins are essential for all life processes.

A molecule or complex of molecules consisting of subunits called amino acids. Proteins are the cell's main building materials, and they do most of a cell's work.

A large, organic compound made of amino acid chains joined by peptide linkages.

Essential to all living cells, simplified by body processes to simple alpha-amino acids.

one of the three major sources of calories in the diet. Protein provides the body with material for building blood cells, body tissue, hormones, and other important substances. It is found in meat, cheese, milk and certain vegetables and starches.

a chain of amino acids; examples include hormones, enzymes, and antibodies.

a chemical composed of amino acids that is used by life to implement the molecular knowledge found in genes.

type of food found in meat, offal, fish, eggs and pulses which is used for body building and repair

A substance found in many foods such as eggs and meat. It is an essential part of all living things.

A naturally occurring combination of amino acids. Protein is one of the essential components of all living things and the diet of animal organisms.

long-chained molecules used to build and repair cells; made of one or more chains of amino acids

Every tissue in your body is made from protein (i.e. muscle, hair, skin, nails). Proteins are the building blocks of muscle tissue. This macronutrient can be found in poultry, meats, and dairy products. Bodybuilding Definitions R - Z

A molecule chain containing amino acid subunits linked together in a specific sequence.

Any of a large group of complex organic compounds, chiefly of amino acids. Proteins govern the structure and function of all body parts.

Molecules composed of amino acids. Proteins constitute the enzymes and many of the structural components of cells.

A nutritional component required by the body to sustain life. Protein is made up of amino acids that have been connected together in a variety of configurations depending on the type of protein. Whole food proteins are believed to play a role in Eosinophilic Enteritis. See also Amino Acid.

Any of a large group of nitrogenous compounds of high molecular weight. Essential ingredient in the diet of fish as a source of amino acids.

large, complex molecule composed of one or more chains of amino acids in a specific order (discovered by Berzelius in 1838)

Proteins are made up of amino acids - they are the main building blocks of our cells.

Proteins are (sometimes very large and complex) molecules made up of 20 different amino acids. The amino acid sequence determines form and function of the protein. Proteins either have structural (as parts of membranes, cell walls, etc.) or catalytic functions, Catalytic proteins are called enzymes and make possible most biochemical reactions in the cell. An enzyme usually promotes a specific reaction or a group of related reactions.

components of cells and viruses that play structural and functional roles in cells.

nitrogenous, amino-acid compounds. They occur in our cell protoplasm or are excreted by the cells; for example milk protein.

An organic compound built up of amino acids, essential to living material.

polypeptide chain which serves a structural or enzymatic role or other role in the cell.

A long-chain molecule consisting of amino acids. The function of a protein is determined by the sequence of amino acids. This sequence of amino acids is determined by the sequence of DNA bases found in the gene coding for that protein.

Substance composed of many amino acids, such as muscle tissue and legume seeds. Also required for growth and development of cattle. Feeds with greater than 20% crude protein is classified as protein supplements.

Chemical building blocks in the body made of smaller units called amino acids. Proteins exist in every cell.

Nutrient made up of amino acids. The major function of protein in the body is the growth, maintenance, and repair of body tissues. Protein can be derived from meat, beans and nuts, dairy products, and grains.

A molecule comprised of long chains of amino acid molecules. Proteins, which include enzymes, are polypeptides.

Any one of a group of complex compounds containing nitrogen found in plants and animals which form the principal constituents of the cell protoplasm. They are essentially combinations of amino acids and their derivatives.

This nutrient helps us to grow and repair our bodies.

A complex organic compound composed of one or more polypeptide chains.

One of the three main constituents (carbohydrate, fat, and protein) of foods. made up of amino acids proteins are found in foods such as milk, meat, fish and eggs. Proteins (four calories per gram) are burned at a slower rate than fats or carbohydrates.

A nutrient in food that is important for growth, development and repair of tissues. Food high in protein include meat, poultry, fish, eggs, legumes and dairy foods.

is one of the major sources of calories in a diet. Found in meats, eggs, milk and some vegetables and starches, protein provides the body with material for building blood cells, hormones and body tissue.

Food which is a building block for cells. It is found in foods like meat, eggs, and beans like lentils

A family of large natural chemicals in the body. Each is composed of amino acids in the order specified by the gene that encodes it.

Any of a group of complex organic compounds that are composed of amino acids.

Highly complex compounds that are made up of amino acids and essential in animal metabolism.

Large complex compounds found in all animals and plants, made up of amino acids. Proteins are responsible for structure and function of a cell. They act as enzymes (to speed up chemical reactions in a body), structural elements, hormones, immunoglobulins, etc. In addition, they are involved in oxygen transport, muscle contraction, electron transport and other activities throughout the body.

A large molecule encoded by a gene; they are required for the structure, function, and regulation of the body's cells, tissues, and organs; examples include hormones, enzymes, and antibodies

Molecules made from units called amino acids. Proteins are found in plant foods in small amounts. Proteins are an essential component of a healthy diet, and are used to build muscle and other body structures such as scales and claws, and act as enzymes in the body, which regulate the various chemical reactions needed for life. Although proteins are necessary, iguanas cannot handle the large amounts of proteins found in animal products such as meats, eggs and dairy products. A diet too high in protein can lead to gout (see above), and a diet too low in protein or missing certain proteins can also lead to ill-health. For more information on diet, see the Food and Feeding page.

In humans, protein is a chain of fifty or more amino acids arranged in a unique sequence. Proteins are manufactured from amino acids that the body produces or that are obtained from dietary sources. Proteins are the basic component of all animal and vegetable tissues.

A macro-nutrient, found primarily in meat sources. Protein is used to build tissues in addition to being an alternate source of energy. Protein contains 4 calories per gram. About 20% of the bodies weight should come from protein sources.

Macromolecules whose structures are code by genes in the organism's DNA. Proteins are required for the structure, function, and regulation of cells, tissues, and organs, and each protein has unique functions. Back to glossary index

Complex molecules composed of amino acids that are essential to an organism's structure and function. The sequence of a protein's amino acids and thus the structure and function of the protein is determined by the DNA sequence of the gene that encodes it.

Proteins are essential molecules in the body made up of many amino acids strung together. DNA encodes the proteins and the cells can then turn the DNA into RNA and ultimately into proteins. Clotting factors are one of many types of proteins

PRO-teen A polymer of amino acids. 46

One of the three major nutrients in food. Protein provides about 4 calories per gram. Protein is found in foods from the milk and meat exchange lists. Smaller amounts of protein are found in foods from the vegetable and starch/ bread lists.

A organic compound consisting of peptide-linked amino acids. Ingested by hummingbirds in the form of insects or plant pollen. Necessary to produce build and repair muscles, body organs, etc. Also see fat and carbohydrate.

A class of compounds composed of linked amino acids that contain carbon, hydrogen, nitrogen, oxygen, and sometimes other atoms in specific configurations.

Built from amino acids, it is broken down during digestion into the amino acids which then build other proteins throughout the body.

Building blocks that our body uses; made up of chains of amino acids. Body tissues, like our skin, hair and muscles are built mostly of protein; also needed for grow and repair.

Highly complex nitrogenous compounds found in all animal and vegetable tissues. Proteins, the principal constituents of the protoplasm of all cells, are of high molecular weight and consist essentially of combinations of amino acids in peptide linkages. Twenty different amino acids are commonly found in proteins and each protein has a unique, genetically defined amino acid sequence that determines its specific shape and function. They serve as enzymes, structural elements, hormones, immunoglobulins, etc. and are involved in oxygen transport, muscle contraction, electron transport and other activities throughout the body and in photosynthesis.

large molecules made of a combination of smaller units called amino acids the sequence of which is genetically determined. Proteins are responsible for most of the function and much of the structure of living things, including humans.

any of a very large group of organic compounds composed of one or more chains of amino-acids and forming an essential part of all living organisms

A large, complex molecule made up of one or more amino acid chains. Proteins are responsible for many activities at the cellular level.

A class of complex compounds made of nitrogen that are produced by all living organisms for growth and repair of animal tissue.

Proteins are chains of Amino Acids that are important for the development and repair of body tissues, such as connective tissue and muscle. They are derived from meat, eggs, fish and milk.

A compound made out of a string of amino acids and folded into a particular shape joined by peptide bonds. Each protein has a specific function, with some having a structural role and others acting as enzymes and speeding up chemical reactions.

A large group of molecules that form the building blocks of the body. Examples of proteins are antibodies, which help the body fight infection, and myelin, which forms a covering for nerves.

Large molecules, for example haemoglobin. There are thousands of different types in your body, each with a particular job.

Any of the group of large molecules that are composed of a linear sequence of amino acids. Proteins account for more than 50 percent of the dry weight of most cells, and are involved in most cell processes. Examples of proteins include enzymes, collagen in tendons and ligaments and some hormones. For more information see An introduction to proteins (BioTech, University of Texas, USA) and Protein structure and diversity (Molecular Biology Notebook, Rothamsted Research, UK).

the building blocks of life; any of a class of highly complex nitrogenous (nitrogen-based) organic compounds originally synthesized (made by plants) and after hydrolysis by enzymes, into amino acids, forming an essential part of the processes of animal metabolism

Nitrogen-based essential nutrient, composed of chains of amino acids, that is present in all living things.

A complex organic molecule composed of many amino acids linked together in chains, called polypeptide chains. The sequence of amino acids is specified by the sequence of nucleotides in the DNA of genes. There may be one or more such chains in a protein, and the chains are folded up into characteristic three-dimensional configurations. Proteins are found in all living organisms, and there are many different kinds of protein molecule. Many proteins are enzymes, the catalysts of biochemical reactions; others play a variety of structural and other roles.

Protein is also an energy source. The body uses protein to repair tissues and maintain muscle, essential for growth and development. Protein can be converted into glucose when there is no alternative source (carbohydrate) to fuel the body. This requires breaking down muscles and removing any stores of protein the body has built.

Fundamental molecule in all life-forms built of amino acids and encoded in DNA. Proteins function as enzymes, hormones, receptors and various structural filaments within cells.

An organic compound composed of amino acids which are linked together by peptide bonds to form long chains, or polypeptides.

One of the many substances found in food such as meat, cheese, fish or eggs that is necessary for the body to grow and be strong.

A three-dimensional biological polymer constructed from a set of 20 different monomers called amino acids.

One of the three major food substances; food used to build body tissues.

Naturally occurring complex organic substances, such as pollen; composed of amino acids, the building blocks of protein.

The complete, assembled form of a holoprotein, containing all necessary subunits (eg. hemoglobin is comprised of two a and two b globin subunits, as well as a heme prosthetic group) (see also polypeptide).

in the diet it is required for tissue growth and repair. Composed of structural units called amino acids. Protein is not a significant energy source unless not enough calories and carbohydrate are consumed. One gram of protein equals four calories.

Proteins are complex organic compounds composed of amino acids. They are present in all living cells and are essential for the growth and repair of human tissue.

A nitrogen-containing compound that is an essential constituent of all animal and vegetable tissues, necessary for growth and repair.

Compounds made of amino acids, containing carbon, hydrogen, oxygen, nitrogen, and at times other atoms.

One of the three main classes of food. Proteins are found in meats, beans and tofu. Proteins are broken down into to amino acids within the small intestine and absorbed through the cells which line the small intestine. There are then reassembled by the liver and made into proteins for use through the body.

One of four food sources that supply energy. Protein provides 4 calories per gram. Proteins are essential for cellular repair, growth, etc.

Protein constitutes 75% of our body's tissues, excluding water. Muscles, organs, antibodies, and most hormones and enzymes are largely composed of protein. Protein is actually a chain of amino acids. “Essential” amino acids are amino acids that we must obtain from food sources, as our body does not manufacture them. The “non-essential” amino acids can be manufactured within our bodies. Resting Metabolic Rate (RMR) The number of calories that your body burns at rest. For example, if all you did all day was sit on the couch and just breathe, your RMR would be the number of calories your body burns in the course of the day.

A large molecule composed of amino acids. Essential components of the body tissue (see also peptide).

Amino acids linked in a sequence. search for Protein

a polymer of amino acids in which carbon atoms and peptide groups alternate to form a linear polypeptide chain which can be highly folded, assuming a variety of three-dimensional shapes.

Any complex organic compound containing nitrogen.

Amino acids that your body gets from foods like eggs, fish and meat, and uses for energy and to build and repair tissues.

A substance in the human body that is made up of amino acids.

The main building block of our cells. Each one has a specific function.

one of three main types of foods, along with fats and carbohydrates. Proteins are digested into smaller pieces called amino acids that are used by the body to build and repair cells. Proteins are found in meats, eggs, milk products, and beans.

A large molecule composed of one or more chains of smaller molecules called amino acids. Proteins are required for the structure, function and regulation of the body's cells, tissues and organs. Examples are hormones, enzymes, and antibodies. Click here to return to list

Large polymers composed of hundreds to thousands of amino-acid subunits strung together in a specific order into long chains. The order is determined by the base sequence of nucleotides in the gene coding for the specific protein. Proteins are required for the structure, function, and regulation of the body's cells, tissues, and organs.

String of amino acids linked by peptide bonds. Some proteins have more than one polypeptide chain. Each chain is encoded by a different gene.

A molecule composed of one or more chains of amino acids in a specific order; the order is determined by the base sequence of nucleotides in the gene coding for the protein. Proteins are required for the structure, function and regulation of cells, tissues and organs, each protein having a specific role (e.g., hormones, enzymes and antibodies).

fundamental component of the body. Large molecule consisting of dozens of thousands of amino acids.

Molecules involved in structures, hormones, enzymes, muscle contraction, and immune system responses.

A food source of nitrogen based substances from plants and animals.

Group of nitrogen containing compounds found in the body that are essential to life.

a molecule whose structure is coded for by genes; proteins carry out functions which are necessary for our cells and bodies to survive. Click here to return to the passage.

A large, complex molecule composed of amino acids. Proteins are essential to the structure, function, and regulation of the body. Examples are muscle, peptide hormones, enzymes and antibodies.

Proteins are the true ”working horses” of the cell. They have each a specific task to play in the ”chemistry of life”, e.g. some digest the food we eat, others protect us from invaders or are involved in the signalling processes between cells. Proteins are quite large and complex molecules produced by a cell’s “machinery” in a stepwise addition of building blocks (amino acids) into a chain (typically 50-1000 amino acids) which later folds into a more compact structure. The instruction for how this assembly takes place is stored in the genes.

a complex natural substance that has a globular or fibrous structure composed of amino acids linked by peptide bonds. Proteins are essential to the structure and function of all living cells.

An organic molecule that consists of amino acids joined together in a specific sequence. Proteins are made inside cells by gene expression. They can have a variety of functions inside and outside cells, including giving cells their shape and structure. Some proteins are enzymes and speed up chemical reactions. Some are responsible for the movement of muscles. Others are hormones. Others are found in cell membranes and help transport atoms and molecules in and out of cells. They are a main constituent of many foods and an important part of a balanced diet (the amino acids released by the break down of proteins we have eaten are used by the body's cells to make new proteins).

Composed of a chain (or chains) of amino-acids, i.e. one or more polypeptides, with a defined `3D' complex structure that defines its biological function. Regulatory Gene Regulatory genes control the expression of structural and other regulatory genes, increasing and decreasing their levels of activity or turning them `on' or `off' completely.

All living cells contain these large, complex organic molecules that include enzymes, antibodies, hormones, and other elements that help organisms function. Proteins are present in human tears and can collect on contact lenses, resulting in discomfort and cloudy vision.

A chain of amino acids. There are many different proteins which can perform many different functions in the body.

A macromolecule formed from a sequence of amino acids synthesized according to the genetic information coded by RNA (translation). Proteins are the fundamental functional and structural constituents of cells.

Primary macronutrient for growth and maintenance of our body's structural parts (including muscle). Cannot be stored, so must be replenished through diet. (1 gram=4 calories).

Source of protein with high Protein Efficiency Ratio, usually in egg white form (albumin) when used in protein powder to avoid cholesterol in egg yolk. Egg protein is the standard by which all other proteins are measured because of its very high ration of indispensable amino acids (also called essential amino acids because they must be supplied to the body from food or supplements) to dispensable amino acids.

Soy protein does not offer much benefits to a bodybuilder. Soy protein does not form a good curd in the stomach, thus making it a fast protein. The amino acid pattern in soy is inferior to that of milk proteins, and not as favorable toward promoting growth. However, it is a unique vegetarian protein that contains all of the Essential Amino Acids you need.

Dairy source of protein (other than cassein), known for high levels of BCAA's and high nitrogen retention. Made from milk curd, whey protein is the Rolls Royce of proteins because it has a superior amino acid composition (including high levels of leucine, arguably the most important branched chain amino acid), superior biological value (meaning that more of what you eat gets digested and into your system), is very low in lactose (a milk sugar that most adults have difficulty digesting).

When you hydrolyze whey protein, you permanently modify the native protein structure, meaning that the protein has been denatured. A denatured whey protein has little or no biological activity. The hydrolysis process breaks apart peptide bonds, which destroys the protein structure and the bital whey protein biological activity. However, you still get the amino acids of whey proteins from the hydrolyzed whey protein. Half the reason bodybuilders eat protein is to obtain these healthful smaller protein chains.

any of the amino acids present in all living matter that are an essential food item

a complex compound (nitrogenous organic) containing amino acids, used in growth and repair of tissue.

A molecule composed of amino acids. There are many types of proteins, all carrying out a number of different functions essential for cell growth.

The building blocks of the body. Composed of amino acids, which are vital to the body's growth and function. Supplies valuable enzymes that regulate bodily functions. Key to muscle building and development.

A large molecule composed of a linear sequence of amino acids. This linear sequence is a protein's primary structure. Short sequences within the protein molecule can interact to form regular folds (eg, alpha helix and beta pleated sheet) called the secondary structure. Further folding from interaction between sites in the secondary structure forms the tertiary structure of the protein. Proteins are essential to the structure and function of cells. They account for more than 50 per cent of the dry weight of most cells, and are involved in most cell processes. Examples of proteins include enzymes, collagen in tendons and ligaments and some hormones. More information can be found at Protein structure and diversity (Molecular Biology Notebook, Rothamsted Research, UK).

The second most common component of the body, besides water. Protein is crucial for the body's tissue development and growth. The body builds protein from amino acids. Common food sources include eggs, fish, chicken, red meat, milk and cheese, and brown rice.

A macromolecule built of amino acid subunits held together by peptide bonds.

a linear polymer of amino acids linked together in a specific sequence and usually containing more than 50 residues. Proteins form the key structural elements in cells and participate in nearly all cellular activities.

Any of a group of complex nitrogenous organic compounds of high molecular weight that have amino acids as their basic structural units and that are found in all living matter and are required for the growth and repair of animal tissue.

any of a group of complex organic compounds which contain carbon, hydrogen, oxygen, nitrogen and usually sulfur, the characteristic element being nitrogen; widely distributed in plants and animals.

the basic structural components of cells and tissues and of the enzymes controlling biochemical reactions. Proteins are complex macromolecules made up of long chains of subunits called amino acids. These chains fold into complex three-dimensional shapes. Protein modeling using methods like homology modeling and m olecular dynamics is a central technology in drug discovery, usually aiming to identify targets for potential drugs.

A very large, naturally occurring polyamide formed from a selection of the 20 or so naturally occurring amino acids.

molecule composed of amino acids; for each protein, the order of the amino acids is related to the chain of the codons (groups of three nucleotides) from the gene encoding this protein; obtained by the translation mechanism; see also genetic code

Plays an important role in maintaining the body's functions and is the main component of muscle tissue. A gram of protein provides 4 calories of energy. Good sources of protein include foods from animal sources and legumes, such as chickpeas (garbanzo).

complex nitrogenous compounds that occur naturally in plants and animals and yield amino acids. Essential for the growth and repair of animal tissue.

Macromolecules made up of amino acids. They are the chemical building blocks from which cells, organs and tissues like muscles are made. They also serve as hormones, enzymes and antibodies. Proteins are involved in the most important cell metabolism processes.

a complex molecule found in numerous cellular structures that is composed of amino acids

Composed of amino acids, proteins are a key component in many cell structures. In addition, many hormones and enzymes that regulate cells are proteins.

(1) Any of the complex nitrogenous compounds formed in living organisms which consist of amino acids bound together by the peptide linkage. (2) Any of a group of nitrogenous organic compounds of high molecular weight synthesized by plants and animals that, upon hydrolysis, yields amino acids that are required for all life processes.

a molecule made up of amino acids linked together. They are the body’s workhorses whose function can be as enzymes, structural components, or signaling molecules.

A high-molecular weight biological molecule composed of a polymer of amino acids linked via peptide bonds; may consist of more than one polypeptide molecule that is folded into complex shapes such as helices or sheet-like structures. Proteins are encoded by the specific sequence of DNA nucleotides in a gene and give rise to the structure, function, and regulation of cells, tissues, and organs within the body. Protein classes include enzymes, antibodies, receptors, hormones, and growth factors.

Composed of one or more chains of amino acids. Proteins are fundamental components of all living cells and include many substances, such as enzymes, hormones, and antibodies that are necessary for the proper functioning of an organism.

long linear polymers of amino acids joined head to tail by a peptide bond between the carboxylic acid group of one amino acid and the amino group of the next; proteins determine the shape and structure of the cell and also serve as instruments of molecular recognition.

A nutrient. Foods of animal origin are the best source of high-quality, complete protein because they contain the 8 essential amino acids in the proportions necessary to build, maintain and repair the body tissues and strengthen its defense mechanism against infection and disease.

a chain of amino acids. The sequence of amino acids is specified by a gene. Each protein is made by a ribosome, and it folds up into a specific shape that is determined by the sequence of amino acids. The precise arrangement of amino acids determines the properties of the protein. Some proteins are enzymes, other are structural (e.g. keratin).

The bits of your cells that actually do things. Proteins are large, complex molecules composed of one or more chains of amino acids. They have a huge range of jobs in the body, from controlling chemical reactions ( enzymes) to providing a cell's internal scaffolding. A protein's job is determined by the sequence of amino acids that it is made of. This, in turn is determined by the order of bases in the gene that made the protein. So if the sequence of bases in a gene is damaged ( mutated), it can alter the function of a protein so that it can no longer do its job correctly. This can lead to cancer.

a large molecule that consists of many amino acids chained together. Millions of proteins direct the activities of human cells and body functions.

Consists of amino acids linked together to form long chains. Depending on structure, these chains can be functional. Enzymes are an example of functional proteins.

A molecule made up of amino acids linked together in a specific order determined by genetic information. Proteins are required for the structure, function and regulation of the body's cells and tissues.

one of the major types of foodstuff found in meat, fish, dairy produce and nuts. Protein is what makes up muscle and its breakdown products are got rid of through the kidneys.

An organic substance made from hydrogen, oxygen, carbon, and nitrogen. You need protein to live; most of your body is made of it. Proteins are made from strings of amino acids.

A fundamental component of all living cells; made up of amino acid subunits. Proteins make up most enzymes, antibodies, hormones, receptors, and other essential cellular components.

A large biomolecule composed of one or more chains of amino acids in a specific order (which is called "primary structure" or "amino acid sequence"). Proteins are required for the structure, function, and regulation of the body's cells, tissues, and organs; and each protein has unique functions. Examples are, enzymes, antibodies, and some hormones. The sequence and thus structure of the proteins are encoded in the genes.

ingredient in certain foods which builds muscle Prototype a one-off representation of a design that shows how it works, what it looks like and how it is used so that it can be fully evaluated.

a molecule, made from amino acids, that performs activities in the cell for the body to function normally.

A macronutrient that supplies amino acids. Amino acids are the building blocks that build, repair and maintain body tissues.

an important molecule that is found in all life. Proteins are polymers, that is, long strings of individual amino acids.

Any of numerous, naturally occurring complex combinations of amino acids containing the elements carbon, hydrogen, nitrogen, oxygen, usually sulfur, and occasionally other elements. Proteins are essential elements of all living cells.

Protein is one of the three major nutrient groups that provide energy to the body. Protein is derived from animal and soy products and from some plant products like legumes (beans, peanuts and peas). Converted to amino acids by the body during digestion and stored in muscle cells as protein.

Composed of amino acids, proteins form most of a cell's structure and cell products, which include keratin, collagen, elastin, melanin, enzymes, hormones and antibodies. (Animal and vegetable)

A major classification of food, found in meats, fish, beans, and other sources.

Nutrients made up of carbon, hydrogen, oxygen and nitrogen, forming amino acids that help build the basic molecular structure of hair, skin, ligaments and muscles, as well as being essential to the production of hormones and to the transportation of oxygen through the body.

the nutrient used to build muscles. Along with carbs and fats, protein is also one of the sources of energy. Protein molecules are made of different amino acids.

A molecule consisting of many amino acid subunits. The type and order of the amino acids in a protein is specified by the DNA in the cell that produces them.

Chemically, a protein is a complex nitrogenous compound made up of amino acids in peptide linkages. Dietary proteins are involved in the synthesis of tissue protein and other special metabolic functions. In anabolic processes they furnish the amino acids required to build and maintain body tissues. As an energy source, proteins are equivalent to carbohydrates in providing 4 calories per gram. Proteins perform a major structural role in all body tissues and in the formation of enzymes, hormones and various body fluids and secretions. Proteins participate in the transport of some lipids, vitamins and minerals and help maintain the body's homeostasis. Qq Rr

Proteins are biological molecules that are essential for all life processes and are encoded by an organism's genome. A protein consists of chains of amino acid subunits and its function depends on its three-dimensional structure, which is determined by its amino acid sequence.

Proteins consist of amino acid chains. A protein may either consist of a single polypeptide or of a number of chains called subunits of the protein. Proteins play a key role in most biologic processes.

A type of nutrient required for human health. Proteins are used to build and repair body tissues. They can also be used for energy. Protein is found in many foods, including meat, fish, poultry, eggs, and cheese.

Any of a number of naturally occurring complex substances (such as enzymes or antibodies) involved in essential life functions.

A molecule composed of amino acids lined up in a precise order determined by a gene, then folded into a specific three-dimensional shape. Proteins are responsible for countless biological functions and come in a wide range of shapes and sizes.

Protein is comprised of smaller units called amino acids – 20 different amino acids in all. Eight of these are currently considered "essential" because the body can't make them and so they must come from food. The ninth, histidine, is essential for infants, although evidence suggests that it may also be essential for adults. Throughout life, protein helps build and repair body tissues, helps build antibodies and is an integral part of body organs, muscles, nervous system, blood vessels and the skeleton. Resistant starch | Satiety | Soluble fibre | Vitamin E

long molecule composed of amino acids.

a large molecule made up of smaller units called amino acids. Proteins serve many vital functions within and outside of the cell. Genes code for, and make, proteins.

a class of chemicals found in the body made up of chains of amino acids (building blocks). Immunoglobulins (antibodies) are proteins.

Large molecules made up of long sequences of amino acids. Some hormones and all enzymes and cellular structural components are proteins.

a molecule composed of one or more polypeptide chains, each composed of a linear chain of amino acids covalently linked by peptide bonds

A chain (or several chains) of amino acids, typically folded into a complex three-dimensional structure, which is stabilised by various interactions between the side-chains of the individual amino acids.

Proteins are large molecules required for the structure, function, and regulation of the body's cells, tissues, and organs. Each protein has unique functions. Proteins are essential components of muscles, skin, bones and the body as a whole. Protein is also one of the three types of nutrients used as energy sources by the body.

a natural complex created by an arrangement of amino acids

The most important nutrient for those trying to gain muscular weight. Protein is made up of amino acids and is used in the building and repairing of muscle tissue.

a natural polymer formed by condensation reactions between amino acids.

The building block of muscle, enzymes, and some hormones. It is made up of amino acids and is essential for growth and repair in the body. A gram of protein contains four calories. Proteins from animal sources contain the essential amino acids. Proteins from vegetable sources contain some but not all of the essential amino acids. Proteins are broken up by the body to produce amino acids.

Meat, eggs, fish and cheese are examples of foods which are high in protein. Our bodies need protein to grow and for replacing dead cells.

Any of numerous naturally occurring extremely complex combinations of amino acids that contain the elements carbon, oxygen, sulfur, iron, phosphorus, and/or other elements that are essential constituents of all living cells and are synthesized from raw materials by plants but assimilated as separate amino acids.

Complete proteins are those which contain all the essential amino acids which we cannot make in our bodies. Complete protein sources include meats, poultry, eggs, dairy products, peanuts and [soybeans]. Protein found in beans, seeds and nuts are incomplete proteins and must be combined with other protein foods to balance the amino acid content.

A chain of amino acids. Proteins are used by the body for repair and growth. The enzymes that allow the body's chemical reactions to take place and speed them up are also proteins. Proteins yield 4 calories per gram.

A complex molecule made up of one or more polypeptide chains. Proteins perform a wide variety of activities, and as such they are essential to the life of the cell.

a long-chain molecule consisting of amino acids that folds into a complex three-dimensional structure. The type and order of the amino acids in a protein is specified by the nucleotide sequence of the gene that codes for the protein. The structure of a protein determines its function.

a complex nitrogenous organic compound that contains amino acids as its basic structural units.

A large molecule made up of units called amino acids. Dietary protein is essential for building, repairing,,and maintaining body tissues. Soybeans are exceptionally high in quality protein: 35 to 38 percent of the calories in soybeans come from protein. The soybean is the only vegetable offering a complete protein profile. An extensive body of research demonstrates that consuming 25 grams of soy protein per day can lower cholesterol and reduce the risk of heart disease.

A substance made of a string of amino acids. Proteins are the “building blocks” of the human body.

a biological molecule which consists of many amino acids chained together by peptide bonds. The sequence of amino acids in a protein is determined by the sequence of nucleotides in a DNA molecule. As the chain of amino acids is being synthesized, it is also folded into higher order structures shaped, for example, like helices or like flat sheets. Proteins are required for the structure, function, and regulation of cells, tissues, and organs in the body.

Polymer consisting of amino acids, e.g., antibodies, enzymes

A large molecule composed of one or more chains of amino acids in a specific order; the order is determined by the sequence of nucleotides in the gene coding for the protein. Proteins are required for the structure, function, and regulation of the body's cells, tissues, and organs, and each protein has unique functions.

A large molecule composed of one or more chains of amino acids in a specific order. Proteins are required for the structure, function and regulation of the body's cells, tissues and organs, and each protein has unique functions. Examples include enzymes and antibodies. Q - R

A type of biological compound made up of units called amino acids. Proteins are coded by DNA. They serve many functions and include enzymes, structural elements, hormones and antibodies. They are involved in oxygen transport, muscle contraction and other essential activities throughout the body. QTc Interval – Used to detect ventricular arrhythmias. Represents the duration of ventricular depolarization and repolarization as measured by an electrocardiogram (ECG), a clinically important method for examining the electrical activity in the heart.

chemical substance produced by the DNA. Proteins determine what job a cell will do.

A polymer of amino acids linked via peptide bonds that may be composed of two or more polypeptide chains.

Complex combination of many amino acids, sometimes creating enzymes.

A large molecule composed of one or more chains of amino acids in a specific order determined by the base sequence of nucleotides in the DNA coding for the protein. See the entire definition of Protein

A large molecule composed of one or more chains of amino acids set out in a specific order which is determined by the gene which codes it. Proteins are required for the structure, function, and regulation of cells, tissues, and organs. There are thousands of different proteins serving specific functions in the body. See also: Gene.

Large organic molecules involved in all aspects of cell structure and function.

A common type of biological molecule made up of a string of sub-units called amino acids. Proteins include most enzymes, and many structural components of tissues e.g. collagen.

A type of organic compound that is one of the major components of cells and tissues.

A large, complex molecule composed of as many as twenty identifiable amino acids. The sequence of the amino acids, and thus the function of the proteins, is determined by the sequence of the base pairs in the gene that encodes it. Proteins are essential to the structure, function, and regulation of body's cells, tissues and organs. Examples are peptides hormones, enzymes and antibodies.

A macromolecule consisting of one or more amino acid chains. Proteins carry out most of the cell functions.

A molecule made up of a number of amino acids arranged in a specific order determined by the genetic code. Proteins are essential for all life processes.

Primarily, a nonrandom string of 20 amino acids synthesized in the process of translation. Thus, the sequence of amino acids more or less corresponds to the sequence of bases in the gene. The protein molecule may subsequently undergo extensive chemical modifications. The functions of proteins include catalysis of most chemical transformations in the cell, information processing, and acting as the building blocks of structures.

proteins are fundamental components of all living cells and include many substances, such as enzymes, hormones, and antibodies, that are necessary for the proper functioning of an organism. They are essential in the diet of animals for the growth and repair of tissue and can be obtained from foods such as meat, fish, eggs, milk, and some vegetables.

a class of biological molecules that are formed by connecting a long chain of amino acid molecules Together.

Proteins are made of amino acids, which are called the building blocks of the cells.

a large biological molecule made of many amino acids linked together through peptide bonds

A nutrient category of feed used for growth, milk and repair of body tissue.

Large molecules that are essential to the structure and functioning of all living cells.

A molecule composed of amino acids linked together in a particular order specified by a gene's DNA sequence. Proteins perform a wide variety of functions including serving as enzymes, structural components, or signaling molecules.

Helps build muscle, enzymes, and some hormones. Without protein you can't build muscle.

The structural component of muscles, connective tissues and enzymes. Protein does not provide an ideal source of energy for the muscle. It is better used for growth, maintenance and repair of body tissue. Meats, fish, poultry, eggs, dairy products, beans and nuts are all good sources of protein. 1g of protein = 4 calories

A large, complex molecule made of amino acid chains. Each protein has a unique, genetically defined amino acid sequence which determines its specific shape and function. Proteins (such as antibodies, hormones and enzymes) are necessary for the regulation, structure, and function of the body.

Skin, antibodies, muscle, hormones, are examples of protein (finished product) A long chain of amino acids. Enzymes, pigments etc

Made up of amino acids, protein is a basic building block for growing living bodies.

An organic compound that is the "building block" of the human body. Protein builds and maintains muscle tissue.

Proteins are one of a group of organic compounds of carbon, hydrogen, oxygen and nitrogen with sulfur and phosphorus possibly present. The protein molecule is a complex structure made up of one or more chains of amino acids, which are linked by peptide bonds. Proteins are essential constituents of the body; they form the structural material of muscles, tissues, organs, etc. and are equally important as regulators of function as enzymes and hormones; they can also be converted into glucose and used as an energy source by the body.

a molecule made up of amino acids arranged in a specific order which is determined by a gene. Proteins include neurotransmitters, enzymes, and hundreds of other substances.

substance found in many parts of the body that helps the body to resist disease.

An essential nutrient which gives you energy. Protein is found in foods such as meat, fish, dairy products and beans.

Protein is one of three macronutrients that provide calories. It's needed for the growth and repair of all human tissues. The body can make 13 of its 22 amino acids; the other 9, called essential amino acids, must be obtained in the diet. Protein provides the body with energy and heat, and is needed for the manufacture of hormones, antibodies and enzymes. It also maintains the body's acid/alkali balance.

a molecule composed of a chain of many amino acids that acquires a specific folded shape due to the amino acid sequence.

a group of compounds made up of one or more strands of amino acids folded into complex three-dimensional shapes. Unlike carbohydrates and lipids, proteins contain nitrogen.

Required for the structure, function and regulation of body cells, tissues and organs. A large molecule is made up of one or more chains of amino acids in a specific order. The order is determined by the base sequence of nucleotides in the gene coding for the protein. Each protein has unique functions. Examples are hormones, enzymes and antibodies.

macromolecule formed by the chaining of amino acids, encoded by a gene. Every protein has a precise role in the organism.

A compound consisting of 50 or more amino acids. Click here for a detailed description.

Essential nutrient of body found in meats, eggs, dairy products, beans and nuts; should comprise approximately 15-25% of calories in a runner's diet; converted into the body's structures-bones, muscles, organs, etc.; overconsumption is converted to fat

Made up of amino acids linked together in long chains. The individual chains are called polypeptides. At intervals along their lengths the individual polypeptide subunits are linked together via hydrogen and other types of weak bonds to make up protein. Proteins are synthesized in a process called translation and are extremely variable in structure. They are often described in terms of their size in kilodaltons Kd.

Main sources of proteins are animal products, soy products and legumes. Proteins are converted to amino acids and stored in the muscle cells. Proteins are a source of energy.

The "workhorse" molecules of cells, which provide structure and catalyze chemical reactions in cells. A protein is a long chain, or polymer, of amino acids. Each amino acid is coded for by a triplet of nucleotide bases in a DNA molecule. When a gene is expressed, the cell's machinery manufactures copies of the corresponding protein.

any of a complex group of molecules composed of amino acids.

Long, chain-like molecules consisting of amino acid sub-units. Proteins function as enzymes (catalyzing chemical reactions) or as structural elements providing the cell with shape and form.

A substance made of a string of amino acids. Your body produces many kinds of proteins. Some serve as building blocks for the body and some help the body carry out functions.

One of the three main classes of food. Protein is found in meat, eggs, and beans. The stomach and small intestine break down proteins into amino acids. The blood absorbs amino acids and uses them to build and mend cells. See also amino acids.

Any of a class of highly complex nitrogenous compounds originally synthesized by plants, and forming an essential constituent in the process of animal metabolism.

A linear chain of variable length which is constructed from the 20 basic amino acids (also referred to as a peptide or as a polypeptide). The linear arrangement of the amino acids is known as the protein's primary structure. The local three dimensional arrangement (or folding pattern) of the main portion of the chain (the polypeptide backbone) is known as the protein's secondary structure. The overall three dimensional arrangement of all atoms in a single chain in the protein is termed the protein's tertiary structure. The three dimensional shape, in conjunction with with the chemical properties of the amino acids contained in the protein, determines the protein's function.

Protein is composed of a chain of amino acids. Our muscles, organs, and glands are largely made of protein. Our bodies can produce 13 of the 20 or so amino acids we need to make proteins, but the others (about 9) can be gotten only from food. There are 4 calories in each gram of protein. Return to previous page.

One of the three main nutrients in food. Foods that provide protein include meat, poultry, fish, cheese, milk, dairy products, eggs, and dried beans. Proteins are also used in the body to build cells, to create insulin and other hormones, and other functions.

class of biochemical compounds constructed from amino acids. Proteins may be structural, such as those that make up hair and cartilage, or they may be reactive, such as the enzymes.

one of six types of nutrients needed to sustain human life. Protein is used to build muscles, connective tissues, and cell walls. It is found in meat and dairy products; legumes such as kidney and lima beans; rice; and certain seeds, nuts, and vegetables.

Any of a large class of complex combinations of amino acids.

Class of huge molecules that perform most tasks in living organisms (p.167-172).

Proteins are macromolecules made up of amino acids. They are part of all biological process.

Proteins are molecules that play a critical role in the structure, function and regulation of the cells in you body

Organic substances primarily composed of carbon, hydrogen, nitrogen, and some other minor elements which are arranged in about 20 different compounds known as amino acids. The various amino acids found in a protein are linked together by peptide bonds.

Large organic molecules, made of amino acids, found in all living cells. Enzymes and hormones are proteins. So are collagen, keratin, and elastin. Proteins break down through sun damage and aging. Applied topically to the skin proteins help the skin's surface look firmer.

(PRO-teen) One of the three nutrients that provides calories to the body. Protein is an essential nutrient that helps build many parts of the body, including muscle, bone, skin, and blood. Protein provides 4 calories per gram and is found in foods like meat, fish, poultry, eggs, dairy products, beans, nuts, and tofu.

a molecule made up of amino acids that are needed for the body to function properly. Proteins are the basis of body structures such as skin and hair and of substances such as enzymes, cytokines, and antibodies.

Proteins have two main functions. Large, structural proteins, such as muscle fibers, are the building material of the body. Smaller proteins called enzymes regulate all cell activities.

A biological polymer made by linking together amino acids. Proteins range in size from chains of a few dozen to several thousand amino acids.

polymer formed from amino acids. Wool and silk are protein fibres.

A substance produced by a gene that is involved in creating the traits of the human body such as hair and eye color or is involved in controlling the basic functions of the human body.

A large complex molecule composed of amino acids joinded together [ edit

The major structural component of all body tissue; necessary for muscular growth and cellular repair. Proteins are also a functional component of enzymes, hormones, etc. Used for energy only when carbohydrates and fats are not available.

(n) A complex nitrogenous organic compound of high molecular weight, it consists of amino acids joined by peptide linkages

A large complex molecule made up of one or more chains of amino acids. Proteins perform a wide variety of activities in the cell. [ Talking Glossary

Any of a group of complex organic compounds which contain carbon, hydrogen, oxygen and nitrogen. Proteins are made of amino acids.

A nutritional component made up of amino acids essential for energy and proper growth.

1. One of the three main nutrients in food. Foods that provide protein include meat, poultry, fish, cheese, milk, dairy products, eggs, and dried beans. 2. Proteins are also used in the body for cell structure, hormones such as insulin, and other functions.

molecules composed of amino acids; all enzymes, and most biomolecules which actively do things, are proteins. They are essential to almost all living organisms

Large molecules made up of polypeptides in one or more chain formations.

A complex polymer containing more than approximately 100 amino acid molecule monomers. Proteins make up the majority of structural and functional chemicals in animals.

A polymer compound composed of 20 amino acids (actually of more amino acids, but they result from additional chemical modification). Proteins are essential for a cell to live. They form its skeleton, catalyze chemical reactions, perform regulatory and transportation functions. Each protein molecule in the living cell has a complex spatial structure. See Polymer, Amino Acids.

An organic compound composed primarily of amino acids.

Compounds composed of hydrogen, oxygen, and nitrogen present in the body and in foods that form complex combinations of amino acids. Protein is essential for life and is used for growth and repair. Foods that supply the body with protein include animal products, grains, legumes, and vegetables. Proteins from animal sources contain the essential amino acids. Proteins are changed to amino acids in the body.

Biological macromolecules composed of a chain of covalently linked amino acids. Proteins may have structural or functional roles.

A complex chemical compound that consists of many amino acids attached to each other which are essential to the structure and functioning of all living cells.

A molecule made up of amino acids that are needed for the body to function properly. Proteins are required for the structure, function, and regulation of the body's cells, tissues, and organs; and each protein has unique functions. Examples are hormones, enzymes, cytokines, and antibodies. Proteins are the basis of body structures such as skin and hair. find all NHC pages containing: protein

Complex molecule composed of amino acid units.

One of the three nutrients that supply calories to the body. Protein makes all life possible because it is the major structural material in the body forming muscle, bone, skin, blood, and hormones. Thousands of different proteins exist in the body, all made up from the 20 different amino acid building blocks. Protein is found in meats, dairy products, eggs, milk, as well as some vegetables and food starches.

Proteins are relatively large organic compounds made of amino acids arranged in a linear chain and joined together between the carboxyl atom of one amino acid and the amine nitrogen of another. This bond is called a peptide bond. The sequence of amino acids in a protein is defined by a gene and encoded in the genetic code.

Microfiltration Whey Protein features filtering membranes with microscopic holes. This is also sometimes called Cross-Flow filtration, or Nanofiltration, depending on the size of the holes of the filtering membranes.