Metabolism of Amino Acids in the Citric Acid Cycle Yields

Question

Metabolism of amino acids in the citric acid cycle yields
A) more energy than lipid metabolism.
B) more energy than carbohydrate metabolism.
C) approximately the same energy as lipid metabolism.
D) approximately the same energy as carbohydrate metabolism.
E) more energy than lipid and carbohydrate metabolism combined.

Accepted Answer

Metabolism of amino acids in the citric acid cycle yields approximately the same amount of energy as carbohydrate metabolism. Lipid metabolism yields more energy than both amino acid and carbohydrate metabolism. Therefore, option D is the best choice.