Microtubules, being part of the cytoskeleton... help a cell maintain its shape.
Microtubules typically radiate outwards from the centre of the cell; a place called an MTOC or microtubule organizing centre. They are involved in kinetichore and spindle formation during mitosis. On...
Microtubules are biopolymers that are made of a substance called Tubulin. Tubulin is a globular cytoplasmic protien.
Tubulin protein .
De Robertis and Franchi in the year 1953