The Standard Reduction Potentials (E'°) for the Following Half Reactions $\rightarrow$

question 75

Multiple Choice

The standard reduction potentials (E'°) for the following half reactions are given. Fumarate + 2H⁺ + 2e^- $\rightarrow$ succinate
E'° = +0.031 V
FAD + 2H⁺ + 2e^- $\rightarrow$ FADH₂
E'° = -0.219 V
If succinate, fumarate, FAD, and FADH₂, all at l M concentrations, were mixed together 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, not a substrate.

Distinguish between different types of motives (biological, social, etc.).

Recognize the role of incentives in motivating behavior.

Explain the concept of homeostasis and its importance in motivation.

Identify and understand social needs and how they differ from biological needs.

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