In oxidation-reduction reactions,____.
A) both molecules give up electrons
B) both molecules gain electrons
C) cells harvest energy
D) the molecule that accepts electrons is reduced
E) hydrogen ions are usually absorbed

Question

In oxidation-reduction reactions,____.  
A) both molecules give up electrons
B) both molecules gain electrons
C) cells harvest energy
D) the molecule that accepts electrons is reduced
E) hydrogen ions are usually absorbed

Quizplus · Accepted Answer

In oxidation-reduction reactions, one molecule loses electrons (is oxidized) while the other gains electrons (is reduced). The molecule that accepts electrons is reduced, so choice D is correct. Choices A, B, and E are incorrect. Choice C is true in some cases, but not all oxidation-reduction reactions involve energy harvest.

In Oxidation-Reduction Reactions,____