Cholesterol is a structural component of cell membranes. Amount of cholesterol present can affect membrane stability and permeability. What is the role of cholesterol in a membrane?
A. Membranes with high amounts of cholesterol are very stable and have decreased permeability.
B. A membrane that needs to be rigid, such as a protective barrier, would have low cholesterol ratios.
C. A membrane that needs to be more rigid and more permeable, would have high cholesterol ratios.
D. Membranes with low amounts of cholesterol are very stable and have increased permeability.
Answer: A
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