During aerobic respiration, which of the following directly donates electrons to the electron transport chain at the lowest energy level?
A) ADP+?i
B) NADH
C) NAD+
D) ATP
E) FADH2
Answer: E
During aerobic respiration, which of the following directly donates electrons to the electron transport chain at the lowest energy level?
A) ADP+?i
B) NADH
C) NAD+
D) ATP
E) FADH2
Answer: E