OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is a role of cholesterol in animal cells?
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it increases body fat
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it controls membrane fluidity
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it lines the inner wall of capillaries
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it is a constituent of bile
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Explanation:
Detailed explanation-1: -Cholesterol modulates the bilayer structure of biological membranes in multiple ways. It changes the fluidity, thickness, compressibility, water penetration and intrinsic curvature of lipid bilayers.
Detailed explanation-2: -The cholesterol molecules enhance the permeability-barrier properties of the lipid bilayer. They orient themselves in the bilayer with their hydroxyl groups close to the polar head groups of the phospholipid molecules.
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