en:cytoskeletal_filaments [Chapters]

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.

====== BIOMOLECULAR STICKS OR FILAMENTS ======

The floor of the cell is formed by interlinking filaments which r spread all over the cytoplasm.

These interlinking filaments are called cytoskeleton....
The cytoskeleton can also contract, thereby deforming the cell and the cell's environment and allowing cells to migrate.[5] Moreover, it is involved in many cell signaling pathways: in the uptake of extracellular material (endocytosis),[7] segregates chromosomesduring cellular division,[3] is involved in cytokinesis (the division of a mother cell into two daughter cells),[4]provides a scaffold to organize the contents of the cell in space [5] and for intracellular transport (for example, the movement of vesicles and organelles within the cell);[3] and can be a template for the construction of acell wall.


Eukaryotic cells contain three main kinds of cytoskeletal filaments: microfilaments, microtubules, and intermediate filaments.
A large-scale example of an action performed by the cytoskeleton is muscle contraction. During contraction of a muscle, within each muscle cell, myosin molecular motors collectively exert forces on parallel actinfilaments.