9
QuizMultiple Choice

Energy in Cells

Question 9 • HVA 26-27 IM Biology A

If a person did not eat for several days, which sequence of events would occur?

Answer
A
Glycogen stores would be depleted first, then structural proteins, and then stored lipids.
B
Lipid stores would be depleted first, then stored glycogen, and then structural proteins.
C
Proteins stores would be depleted first, then stored lipids, and then stored glycogen.
D
Glycogen stores would be depleted first, then stored lipids, and then structural proteins.

Explanation

The body uses its readily available glycogen stores first to help maintain blood glucose, and these stores run low relatively quickly. It then relies more heavily on stored lipids for energy. With prolonged fasting, the body increasingly breaks down structural proteins, so the sequence is glycogen, lipids, then structural proteins: choice D.

AI-written and checked against the verified answer.