Multiple Choice
In the context of the lipid bilayer, what is the primary role of cholesterol in the plasma membrane?
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8. Membrane Structure
The Lipid Bilayer
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In the context of the lipid bilayer, what is the primary function of the cell (plasma) membrane?
A
It acts as a selectively permeable barrier that regulates the movement of substances into and out of the cell.
B
It synthesizes most of the cell’s ATP through oxidative phosphorylation.
C
It stores the cell’s genetic information and directs transcription.
D
It is the primary site of protein synthesis by ribosomes.
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