The following is step 3 of the citric acid cycle. What is the functional group transformation that occurs in the first part of this step? A) A ketone and an alcohol change positions. B) An alcohol becomes a ketone. C) The -COO^- is transformed. D) The alcohol becomes an aldehyde. E) A carbon-carbon double bond is added.

Question

Quizplus · Accepted Answer

In step 3 of the citric acid cycle, isocitrate is oxidized to form alpha-ketoglutarate, and in the first part of the step, an alcohol group (-OH) is oxidized to form a ketone group (-C=O), hence the functional group transformation is from an alcohol to a ketone.

The Following Is Step 3 of the Citric Acid Cycle