Which of the following is true for acetyl-CoA?
Which of the following is true for acetyl-CoA?
Select an option to attempt
Correct Answer: Option B
Explanation
Acetyl-CoA (acetyl coenzyme A) is a central metabolic thioester: the acetyl group () is linked via a high-energy thioester bond () to the sulfhydryl group of Coenzyme A (CoA-SH). CoA is a coenzyme derived from pantothenic acid (Vitamin B5), not a protein or cobalt compound. Acetyl-CoA is the entry molecule for the TCA cycle, the precursor for fatty acid and cholesterol synthesis, and is produced by pyruvate decarboxylation, fatty acid β-oxidation, and amino acid catabolism.