Question Detail
Question
Each molecule of FADH2 results in the production of how many ATP molecules during aerobic respiration?
Correct Answer
Option A is the correct answer.
Detailed Explanation
Each molecule of FADH2 donates its electrons to the electron transport chain at a later point (via Complex II) than NADH. As a result, it contributes to the pumping of fewer protons, leading to the production of approximately 1.5 to 2 ATP molecules per FADH2. In many textbooks, this is rounded to 2 ATP.
Hint
Does FADH2 produce the same amount of ATP as NADH (which makes ~3), or a little less?