People are often warned to watch their blood cholesterol level to be sure it does not become too high. In fact, some people do not eat any cholesterol-containing foods at all. Even though we associate elevated cholesterol levels with a risk of heart attack and stroke, why does the body make some cholesterol even if none is eaten?
A) Cholesterol is the basis of all steroid hormones in the body.
B) Cholesterol is used by the mitochondria for cellular respiration.
C) Cholesterol is a short-range signaling molecule that does not last long in the body.
D) Cholesterol is a key component of DNA.
Correct Answer:
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