AP BIOLOGY

CELL RESPIRATION

OXIDATIVE PHOSPHORYLATION

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which electron carrier would have the greatest negative impact on ATP production during oxidative phosphorylation if its production was inhibited?

A	NADH
B	FADH2

Explanation:

Detailed explanation-1: -If oxidative phosphorylation is inhibited, then the concentration of ATP decreases in the cell. Enzymes involved in oxidative phosphorylation are the targets of many drugs and poisons to inhibit cellular respiration.

Detailed explanation-2: -Glycolysis. The citric acid cycle, which makes the most NADH.

Detailed explanation-3: -Synthesis of ATP Oxidative phosphorylation constitutes the major source of ATP in aerobic organisms. During the oxidation of fuel molecules, FADH2 and NADH play a central role as the major electron carriers taking the electrons to the ultimate acceptor, oxygen (O2).

Detailed explanation-4: -Correct answer: FADH2 produces less ATP then NADH because the electrons for FADH2 are dropped off at the second protein of the electron transport chain.

There is 1 question to complete.