Question

. Microtubules are made up of:

a. Actin subunits
b. Keratin subunits
c. Tubulin subunits
d. Lamin subunits
e. Micropore subunits

Answer 1

Microtubules are composed of tubulin dimers and play a role in maintaining cell shape, organelle movement, cell division, and cell motility.

Step-by-step explanation:

Microtubules are the thickest structures of the cytoskeleton and are composed of tubulin dimers, specifically alpha-tubulin and beta-tubulin. These tubulin dimers come together to form hollow cylinders that radiate outwards from the centrosome near the nucleus. Microtubules help maintain cell shape, hold organelles in place, allow their movement, and play a role in cell division and cell motility.