In the Presence of Oxygen, the Three-Carbon Compound Pyruvate Can

question 36

Multiple Choice

In the presence of oxygen, the three-carbon compound pyruvate can be catabolized in the citric acid cycle. First, however, the pyruvate (1) loses a carbon, which is given off as a molecule of CO₂, (2) is oxidized to form a two-carbon compound called acetate, and (3) is bonded to coenzyme A. Which of the following sets of products result from these reactions?

• A) acetyl CoA, O₂, and ATP
• B) acetyl CoA, FADH₂, and CO₂
• C) acetyl CoA, NADH, and CO₂
• D) acetyl CoA, NAD⁺, ATP, and CO₂

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