Question

What is oxidised when pyruvic acid changed into acetyl coa?

Answer 1

Pyruvate oxidation steps. ... A carboxyl group is removed from pyruvate and released as carbon dioxide. The two-carbon molecule from the first step is oxidized, and NAD+ accepts the electrons to form NADH. The oxidized two-carbon molecule, an acetyl group, is attached to Coenzyme A to form acetyl CoA.

Answer 2

Explanation:

The conversion of pyruvate to acetyl CoA is a three-step process. Figure 7.3A. 1: Breakdown of Pyruvate: Each pyruvate molecule loses a carboxylic group in the form of carbon dioxide. ... The hydroxyethyl group is oxidized to an acetyl group, and the electrons are picked up by NAD+, forming NADH (the reduced form of NAD+).