Which of the Following Is the Best Explanation for Why

question 19

Multiple Choice

Which of the following is the best explanation for why cholesterol decreases the permeability of biological membranes?

• A) Cholesterol binds to the outside surface of a membrane, thus blocking the movement of solutes.
• B) Because cholesterol is amphipathic, it forms tiny vesicles that trap solutes.
• C) Because cholesterol is amphipathic, it fits in between the phospholipids and blocks diffusion through the membrane.
• D) Cholesterol has four rings in its structure that can sequester ("trap") solutes.

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Definitions:

Primary Language

The first language a person learns at home in childhood and usually identifies with, often used as the dominant language for daily communication.

Postoperative Client

A patient who is in the recovery phase following a surgical procedure, requiring care and monitoring to ensure proper healing.

Antipyretic Medication

A type of drug used to prevent or reduce fever by lowering body temperature.

Primary Care Provider

A health care practitioner who sees people that have common medical problems. This person is most often a doctor, but may also be a physician assistant or nurse practitioner.