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The conversion of malate to oxaloacetate in the citric acid cycle takes place with the conversion of NAD to NADH. In this reaction, NAD is:
oxidized.
destroyed.
the oxidizing agent.
reduced.
unchanged.

Respuesta :

Answer:

a) the oxidizing agent.

Explanation:

In the citric acid cycle, malate is dehydrogenated into oxaloacetate and the reaction is catalyzed by malate dehydrogenase. The released electrons are accepted by NAD+. So, NAD+ is reduced into NADH. The substances that accept electrons during chemical reactions and are reduced to oxidize the other substances are called oxidizing agents. NAD+ serves as an oxidizing agent as it accepts electrons to oxidize malate into oxaloacetate.

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