During a period of fasting, the principal precursor of ketone bodies in the blood is most likely to be which of the following?

Question

Quizplus · Accepted Answer

During fasting, fatty acids like palmitate are broken down into acetyl-CoA, which is then converted into ketone bodies in the liver. Ketone bodies are synthesized in the liver from acetyl-CoA. Acetyl-CoA can be derived from the oxidation of pyruvate, certain amino acids, and fatty acids. By far, the largest concentration of acetyl-CoA is derived from the b-oxidation of fatty acids such as palmitic acid.

During a Period of Fasting, the Principal Precursor of Ketone