GENERAL HISTOLOGY

Detailed explanation-1: -Microfilaments are thinner (5–7 nm in diameter) than microtubules, they occur in bundles at different cellular locations and can act alone or in co-ordination with microtubules in intracellular movement and cytoplasmic streaming. They are complex assemblies of complex protein monomers.

Detailed explanation-2: -Microtubules are the largest type of filament, with a diameter of about 25 nanometers (nm), and they are composed of a protein called tubulin. Actin filaments are the smallest type, with a diameter of only about 6 nm, and they are made of a protein called actin.

Detailed explanation-3: -An average diameter of microtubule consisting of 9 subunits is about 32 nm, of 10-35 nm, of 11-38 nm and of 12-43 nm, however, individual microtubules in each category significantly vary in size.