medium · MCAT chem-phys
How does the addition of cholesterol to a biological membrane affect its fluidity at different temperatures?
- It increases fluidity at all temperatures by disrupting the phospholipid bilayer.
- It decreases fluidity at all temperatures by making the membrane more rigid.
- It acts as a buffer, preventing excessive fluidity at high temperatures and maintaining fluidity at low temperatures.
- It has no effect on fluidity; it only serves as a precursor for steroid hormones.
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