Fatty acids usually have an even number of carbons in their structures. Catabolism of fatty acids produces two-carbon fragments that are converted to acetyl CoA molecules. What is the most likely way in which these acetyl CoA molecules would be metabolized in aerobic cellular respiration?
A) They would directly enter the electron transport chain.
B) They would directly enter the energy-yielding phase of glycolysis.
C) They would be converted to pyruvate and then undergo pyruvate oxidation upon transport into mitochondria.
D) They would directly enter the citric acid cycle.

Question

Quizplus · Accepted Answer

Acetyl CoA molecules enter into the citric acid cycle in the mitochondria during aerobic cellular respiration. Here, carbon dioxide and ATP are produced through a series of reactions. Therefore, option D is the correct answer.

Fatty Acids Usually Have an Even Number of Carbons in Their