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Cytoskeleton

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zujixufi's version from 2016-09-07 02:42

Section 1

Question Answer
name a microfilamentactin
diameter of microfilament7nm
location of microfilamentmost concentrated at cell cortex
structure of microfilamentglobular protien
function of microfilamentstabilisation, pulling forces (myosin), pushing (actin treadmilling, directional assembly of actin to extend cell surface, cell crawling)
memorize

Section 2

Question Answer
name a microtubuletubulin
diameter of microtubule25nm
location of microtubule organised from a negative centriole
structure of microtubuleropelike polymers of tubulin
function of microtubuleintracellular support and organisation
memorize

Section 3

Question Answer
diameter of intermediate filaments10nm
location of intermediate filamentsextend from nuclear envelope to plasma membrane
structure of intermediate filamentsmany different types, subunits are big fibrous proteins
function of intermediate filamentsstrength, control of nuclear structure and assembly
memorize