#Question id: 451
#Unit 1. Structure and Function of Biomolecules
The standard reduction potentials (E'°) for the following half reactions are given.
Fumarate + 2H+ + 2e– -> succinate E'° = +0.031 V
FAD + 2H+ + 2e– -> FADH2 E'° = –0.219 V
If you mixed succinate, fumarate, FAD, and FADH2 together, all at l M concentrations and in the presence of succinate dehydrogenase, which of the following would happen initially?
#Question id: 452
#Unit 1. Structure and Function of Biomolecules
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:
#Question id: 453
#Unit 1. Structure and Function of Biomolecules
Which statement does not explain why many biochemical processes are carried out via multi-step pathways rather than by single-step reactions (or only a few steps)
#Question id: 454
#Unit 1. Structure and Function of Biomolecules
Which statement is false about most metabolic pathways?
#Question id: 455
#Unit 1. Structure and Function of Biomolecules
Which of the following is correct for a step in a reaction pathway to serve as a control point
A) irreversible B) endergonic C) far from equilibrium
#Question id: 456
#Unit 1. Structure and Function of Biomolecules
Which of the following function is done by compartmentation of enzymes?
A) helps loss by diffusion.
B) keeps separate pools of metabolites in cells.
C) can help control metabolic pathways.