Any of the slender, tubular structures found in most cells, which are involved in maintenance of cell shape.
Minute tubular structures found in centrioles, spindle apparatus, cilia, flagella, and other places in the cytoplasm of eukaryotic cells. These tubules play roles in the motion and maintenance of shape of eukaryotic cells.
in eukaryotic cells, long hollow cylinders composed of the protein tubulin; they influence cell shape, move chromosomes during cell division, and provide internal structure of cilia and flagella.
Cytoskeletal fibers (24 nm in diameter) that are formed by polymerization of ,-tubulin monomers and exhibit structural and functional polarity. They are important components of cilia, flagella, the mitotic spindle, and other cellular structures. ( Figure 19-2)
tiny fibers that are basic to DNA structure that assists in the process of cell division
Cytoskeletal fibers (24 nm in diameter) that are formed by polymerization of ¥á,¥â-tubulin monomers and exhibit structural and functional polarity. They are important components of the cilium, flagellum, mitotic spindle, and other cellular structures. Vesicles and protein particles often are transported along microtubules in a process mediated by kinesin or dynein.
protein fibers made of the protein tubulin and provide support and mobility for cellular activities found in the spindle apparatus.
Slender, tubular structures composed mainly of a specific protein called tubulin, present in the cytoplasm of nearly all cells. They are involved in the maintenance of cell shape and in the formation of spindle fibers of mitosis.
Microscopic tubules that are part of the cytoskeleton and are a component in cilia, flagella, the centrioles, and spindle fibers.
Microtubules are hollow rods functioning primarily to help support and shape the cell and as "routes" along which organelles can move. They are typically found in all eukaryotic cells.
the internal support structure for neurons that guides nutrients and molecules from the body of the cell to the end of the axon and back.
microscopic, tube-like structures manufactured by cells; crucial to cell-division and thus growth
Filaments about 25 nanometers in diameter found in cilia, þagella, and the cytoskeleton. PICTURE
cytoplasmic fibers that consist of tubulin subunits arranged helically to form a hollow tube.
Type of filament in eukaryotic cells composed of units of the protein tubulin. Among other functions, it is the primary structural component of the eukaryotic flagellum.
cell organelles involved in structure, framework, skeleton of the cell
The largest-diameter cable system of the cytoskeleton. Microtubules are composed of polymerized tubulin subunits forming a hollow tube.
microtubulos] protein complex of the cytoskeleton in eukaryotes that helps certain organelles move. The mitotic spindle, cilia, and flagella contain microtubules
Hollow cylinders made of the protein tubulin that form, among other things, the spindle fibers.
tiny filaments (about 25 nanometers in diameter) that are active in mitosis.