[IB Biology at GHS: Cell Biology Reviews]
16. What is the function of Cholesterol (C) in the plasma membrane?

A) Speeds up cell reactions.

B) Stabilizes the membrane.

C) At body temperatures, it makes the membrane less fluid.

D) At body temperatures, it makes the membrane more fluid.

E) Both answers B & C are true of cholesterol in plasma membranes.

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Slichter