Small membrane-bounded organelle that uses molecular oxygen to oxidize organic molecules. Contains some enzymes that produce hydrogen peroxide and others that degrade hydrogen peroxide (H2O2).
A membranous vesicle containing enzymes that break down hydrogen peroxide (H2O2).
Small organelle in eukaryotic cells whose functions include degradation of fatty acids and amino acids by means of reactions that generate hydrogen peroxide, which is converted to water and oxygen by catalase.
organelle similar in structure to a lysosome; it contains enzymes involved in hydrogen peroxide metabolism; it is abundant in liver cells
cytoplasmic body containing enzymes for digestion.
an important part of a normal body cell
an organelle containing oxidative enzymes typically using free-radical mechanisms
an organelle rich in enzymes that act on or generate hydrogen peroxide
A microbody found in vertebrate animal cells, especially liver and kidney cells, that contains urate oxidase and other enzymes.
site of production and degradation of hydrogen peroxide, a toxic byproduct of cell metabolism.
per-OX-eh-soam A membrane-bounded sac that buds from the smooth ER and that houses enzymes important in oxygen use. 72
single membrane cytoplasmic organelles that contain oxidases which produce hydrogen peroxide; important in the catabolism of very long chain fatty acids, synthesis of ether glycerolipids and the production of cholic acid from cholesterol; contains high levels of catalase.
A membrane-bound compartment in the cell that is responsible for the breakdown of certain types of fatty acids. A microbody in the cell similar to mitochondria and lysosomes which contains enzymes.
A membrane-bound organelle that both generates and breaks down hydrogen peroxide.
Organelle, similar to a lysosome, characterized by its content of catalase (EC 1.11.1.6), peroxidase (EC 1.11.1.7) and other oxidative enzymes.
A component of the liver cell that houses enzyme generation. In the case of hyperoxaluria, the enzyme is absent or is secreted in insufficient quantities for proper liver function.
Peroxisomes are ubiquitous organelles in eukaryotes that function to rid the cell of toxic substances. They have a single membrane that separates their contents from the cytosol (the internal fluid of the cell) and that contains membrane proteins critical for various functions, such as importing proteins into the organelles and aiding in proliferation. Unlike lysosomes, which are formed in the secretory pathway, peroxisomes usually self-replicate by enlarging and then dividing, although there is some indication that new ones may be formed directly.
