Microtubule

From Biology-Online Dictionary | Biology-Online Dictionary
Revision as of 21:15, 17 November 2010 by Honee_v (talk | contribs) (up)

Definition

noun, plural: microtubules

A cytoplasmic tubule made up of polymers of alpha- and beta-tubulin dimers. It is the structural component of cytoskeleton, cilia, and eukaryotic flagella.


Supplement

Structure: a tubular structure with diameter of 25 nm, length range ranging from 200 nm to 25 micrometers, and wall thickness of 5 nm.

Features: exhibits polarity and are organized by a microtubule organizing centers (e.g. centrioles and basal bodies)

Function: renders intracellular shape, and involved in locomotion and transport.

Location: cytoplasm of most cells.


Word origin: Greek mīkrós (small)

Related form(s):