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In the citric acid cycle, malate is oxidized to oxaloacetate by the enzyme malate dehydrogenase, which...

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Chemistry

In the citric acid cycle, malate is oxidized to oxaloacetate bythe enzyme malate dehydrogenase, which uses NAD+ as an electronacceptor. In cells, the ratio of [NAD+]/[NADH] is kept very high.Given the following standard reduction potentials, explain why itis so important for cells to maintain this ratio. Justify youranswer with words, equations and diagrams.

oxaloacetate + 2H+ + 2e- -> malate

E°red= -0.166 V

NAD+ + H+ + 2e- > NADH

E°red= -0.320

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