M Prep | MCAT 2015 Question of the Day - Prep, Practice Questions, and More!

Q:

One of the steps of the citric acid cycle is the conversion of succinate to fumarate, which results in the reduction of FAD. This process is shown by the diagram below. Which of the following statements is(are) true regarding the reaction that occurs?

I. Fumarate will rotate polarized light differently than succinate does.
II. FAD becomes reduced to FADH₂
III. The chemical potential energy of fumarate is lower than succinate.

A

III only

B

I and III only

C

II and III only

D

I, II, and III