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The sterol, cholesterol, is a crucial precursor to many hormones and steroids. It also plays a vital role in the cell membrane.

Which of the following statements is NOT correct with respect to cholesterol's interactions within the cell membrane?

A

By intercalating between the fatty acid chains, cholesterol is used to alter membrane fluidity.

B

The concentration of cholesterol within the cellular membrane is partially dependant on the environment's temperature.

C

Cholesterol interacts with the phospholipids where the hydroxyl group is oriented toward the polar phosphate head.

D

Dietary cholesterol has a direct impact on cell membrane cholesterol.

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