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Most of the membrane is composed of phospholipid molecules. These allow the membrane to

be rather fluid (not stiff). Embedded in this membrane are proteins which give some structure to the membrane. The 3rd components are proteins or glycolipids.

Cholesterol is also found in the membrane. It prevents lower temperatures from inhibiting the fluidity of the membrane and prevents higher temperatures from increasing fluidity.

Cholesterol is only found in animal cells.

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Izaiah Lubowitz

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3y ago

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