Cytoskeleton

An important part of cell which is invisible under light microscope is cytoskeleton. It is made up of many types of filaments but most important are microtubules, microfilaments and Microtrabaculac.

•         i.            Microtubules:

Structure: Microtubules are long, unbranched and cylindrical structures with an average diameter of about 25nm. The structures are made primarily by the self. Assembly of tubulin protein.

Function

One very important function of microtubules in their role in the assembly and disassembly of the spindle structure during mitosis. They also provide internal structure to the cell.

•       ii.            Microfilaments:

Structure: Microfilaments are considerable more slender cylinders made up of contractile protein, action and linked to the inner face of the plasma membrane.

Function

They are involved internal cell motion.

•     iii.            Microtrabaculae:

Microtrabaculae appear to be very fragile tubes that form a transient network in the cytosol.

Functions

Cytoskeleton maintains the cell’s shape, anchors organelles in place and moves parts of the cell in processes of growth and motility.