試題詳解

43. 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⁺ → oxaloacetate + NADH + H⁺.
(B) malate + NADH + H⁺ → oxaloacetate + NAD⁺.
(C) NAD⁺ + NADH + H⁺ → malate + oxaloacetate.
(D) NAD⁺ + oxaloacetate → NADH + H⁺ + malate.
(E) oxaloacetate + NADH + H⁺ → malate + NAD⁺.