MICROANATOMY

Detailed explanation-1: -The microtubule is mainly made up of two types of ball-shaped protein monomers (-and -tubulin), which bond together into tubulin dimers. The tubulin diamers then organize themselves into linear columns called protofilaments.

Detailed explanation-2: -Microtubules are composed of alpha-and beta-tubulin subunits assembled into linear protofilaments. A single microtubule contains 10 to 15 protofilaments (13 in mammalian cells) that wind together to form a 24 nm wide hollow cylinder.

Detailed explanation-3: -The tubulin family of proteins are vital components of the eukaryotic cytoskeleton and are the main constituent of microtubules in living cells. The tubulin proteins -and polymerize into long chains or filaments that form microtubules, an essential element of the eukaryotic cytoskeleton.