The final step of the citric acid cycle oxidizes malate to back to oxaloacetate and reduces NAD+. What is the purpose of this step?

Explanation: Malate regenerates oxaloacetate by action of NAD+-dependent malate dehydrogenase, completing the cycle. Coenzymes including FAD and NAD+ are reduced in the Krebs cycle, which transfers electrons by the electron transport chain with oxygen as the final acceptor.

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batolisis batolisis · Answer 2 · 2021-08-05T09:46:32+02:00

The purpose of oxidizing malate and reducing NAD+ ( malate dehydrogenase ) in the final step of the citric cycle is to catalyze the regeneration oxaloacetate and produce another NADH molecule

The citric acid cycle also known as the Krebs cycle is composed of a series of reactions which leads to the generation of Two carbon atoms ( each acetyl group ).

The Citric acid cycle comprises of seven ( 7 ) different steps where

step one is a condensation step
second step the citrate loses and gains one water molecule

hence we can conclude that the what happens at the final step of the citric acid cycle is oxidizing malate and reducing NAD+ to catalyze the regeneration of oxaloacetate and producing another NADH molecule

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