A Membrane's Fluidity is Largely Determined by the Percentage Of

Question

A membrane's fluidity is largely determined by the percentage of
A) Phosphatidylcholine
B) Phosphatidylethanolamine
C) Wax esters
D) Cardiolipin
E) Unsaturated fatty acids

Accepted Answer

The fluidity of a membrane is significantly influenced by the degree of unsaturation of its fatty acids. Unsaturated fatty acids, which contain one or more double bonds, introduce kinks in the fatty acid chains, preventing them from packing tightly together. This increases the fluidity of the membrane.