Describe why membranes with unsaturated fatty acids in their components are more flexible and fluid. (in...

Describe why membranes with unsaturated fatty acids in their components are more flexible and fluid. (in a legible manner)

Expert Solution

Saturated and unsaturated fatty acids :-
• Saturated fatty acids have no double bonds in their hydrocarbon tails.
• Unsaturated fatty acids have double bonds in their hydrocarbon tails.

Fatty acids in membrane :-
• Fatty acids are building blocks of membrane and arranged in a bilayer.
• In this bilayer head of fatty acid is directed outwards and tails directed between the heads.

Saturated fatty acid in membrane :-
• Saturated fatty acids has no double bonds and have straight chains of hydrocarbon tails.
• Because of that straight structure of hydrocarbon tails, fatty acids tails are arranged nore efficiently and have good packing of membrane.
• This good packing and arrangement of tails result into decreased fluidity and flexibility of membrane.

Unsaturated fatty acid in membrane :-
• Unsaturated fatty acid has double bonds and these double bonds creates kink or bend in hydrocarbon tails.
• Because of these bends, now hydrocarbon tails are arranged less efficiently and have loose packing of membrane.
• This loose packing results into increased fluidity and flexibility of membrane.

gladiator answered 2 years ago

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