U4: SW 19

Citrate synthase is inhibit by A. Citrate B. ATP C. Succinyl-CoA D. NADH E. None

A, B, C, D,

Which of the following are true about NAD+ and FAD in the citrate cycle? A. Both lose electrons. B. Both gain electrons. C. Both are reduced. D. Both are oxidized.

B, C

Isocitrate dehydrogenase is inhibited by A. Citrate B. ATP C. Succinyl-CoA D. NADH E. None

B, D

Which of the following statements about standard reduction potential and spontaneity are true? A. A coupled redox reaction with a negative standard reduction potential is thermodynamically spontaneous. B. A reaction with a positive Gibbs standard free energy is thermodynamically spontaneous under standard conditions. C. A reaction with a negative Gibbs standard free energy is thermodynamically spontaneous under standard conditions. D. A coupled redox reaction with a positive standard reduction potential ΔE∘′ is thermodynamically spontaneous.

C, D

Which of the following is true concerning NAD+ and FAD? A. NAD+ is capable of one or two electron transfers. B. Both are only capable of one electron transfer. C. Both are only capable of two electron transfers. D. FAD is capable of one or two electron transfers.

D