E'° of the NAD⁺/NADH Half Reaction Is -0 $\rightarrow$ Oxaloacetate + NADH + H⁺

question 61

Multiple Choice

E'° of the NAD⁺/NADH half reaction is -0.32 V. The E'° of the oxaloacetate/malate half reaction is -0.175 V. When the concentrations of NAD⁺, NADH, oxaloacetate, and malate are all 10^-5 M, the "spontaneous" reaction is:

• A) malate + NAD⁺ \(\rightarrow\) oxaloacetate + NADH + H⁺.
• B) malate + NADH + H⁺ \(\rightarrow\) oxaloacetate + NAD⁺.
• C) NAD⁺ + NADH + H⁺ \(\rightarrow\) malate + oxaloacetate.
• D) NAD⁺ + oxaloacetate \(\rightarrow\) NADH + H⁺ + malate.
• E) oxaloacetate + NADH + H⁺ \(\rightarrow\) malate + NAD⁺.

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