What is the fate of pyruvic acid in an organism that uses aerobic respiration?
A) It is reduced to lactic acid.
B) It is catabolized in glycolysis.
C) It reacts with oxaloacetate to form citrate.
D) It is converted into acetyl CoA.
E) It is oxidized in the electron transport chain.

Question

Quizplus · Accepted Answer

Pyruvic acid is converted into acetyl CoA in the presence of oxygen during aerobic respiration. This reaction occurs in the mitochondrial matrix and is catalyzed by the enzyme pyruvate dehydrogenase. Acetyl CoA then enters the citric acid cycle, where it is further catabolized for ATP production.

What Is the Fate of Pyruvic Acid in an Organism