Identify the Second Step of the Citric Acid Cycle

question 20

Multiple Choice

Identify the second step of the citric acid cycle.

• A)Citrate is converted to isocitrate.
• B)Conjugate addition of water to the double bond of fumarate forms (S)-malate.
• C)Acetyl-CoA reacts with oxaloacetate to form citrate.
• D)FAD oxidizes succinate to fumarate.
• E)The secondary alcohol of isocitrate is oxidized to a ketone by NAD⁺ and the ketone loses CO₂.

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