The standard reduction potentials (E0') for the following half reactions are given. Fumarate + 2H⁺ + 2^e− → succinate E^0' = + 0.031 V FAD + 2H⁺ + 2^e− → FADH₂ E^0' = −0.219 V If you mixed succinate, fumarate, FAD, and FADH₂ together, all at 1-M concentrations and in the presence of succinate dehydrogenase, which of the following would happen initially? A) fumarate and succinate would become oxidized; FAD and FADH₂ would become reduced B) fumarate would become reduced, FADH2 would become oxidized C) no reaction would occur because all reactants and products are already at their standard concentrations D) succinate would become oxidized, FAD would become reduced E) succinate would become oxidized, FADH₂ would be unchanged because it is a cofactor

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The Answer of The standard reduction potentials (E0') for the following half reactions are given. Fumarate + 2H⁺ + 2^e− → succinate E^0' = + 0.031 V FAD + 2H⁺ + 2^e− → FADH₂ E^0' = −0.219 V If you mixed succinate, fumarate, FAD, and FADH₂ together, all at 1-M concentrations and in the presence of succinate dehydrogenase, which of the following would happen initially? A) fumarate and succinate would become oxidized; FAD and FADH₂ would become reduced B) fumarate would become reduced, FADH2 would become oxidized C) no reaction would occur because all reactants and products are already at their standard concentrations D) succinate would become oxidized, FAD would become reduced E) succinate would become oxidized, FADH₂ would be unchanged because it is a cofactor

The Standard Reduction Potentials (E0') for the Following Half Reactions