NADH is primarily used for?

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Multiple Choice

NADH is primarily used for?

NADH is the main electron carrier used to harvest energy from nutrients via cellular respiration. It picks up high-energy electrons from fuel breakdown (glycolysis, pyruvate oxidation, and the citric acid cycle) and donates them to the electron transport chain. There, the energy of those electrons drives proton pumping across a membrane, creating a proton motive force that powers ATP synthase to make ATP. That is why NADH’s primary role is to generate ATP through oxidative phosphorylation. NADPH, by contrast, carries reducing power for biosynthetic (anabolic) reactions, which is a different job from NADH. In photosynthesis, electrons are ultimately used to produce NADPH for carbon fixation, not NADH, so NADH isn’t the main electron donor there. And NADH isn’t a structural cofactor for proteins.

NADH is the main electron carrier used to harvest energy from nutrients via cellular respiration. It picks up high-energy electrons from fuel breakdown (glycolysis, pyruvate oxidation, and the citric acid cycle) and donates them to the electron transport chain. There, the energy of those electrons drives proton pumping across a membrane, creating a proton motive force that powers ATP synthase to make ATP. That is why NADH’s primary role is to generate ATP through oxidative phosphorylation.

NADPH, by contrast, carries reducing power for biosynthetic (anabolic) reactions, which is a different job from NADH. In photosynthesis, electrons are ultimately used to produce NADPH for carbon fixation, not NADH, so NADH isn’t the main electron donor there. And NADH isn’t a structural cofactor for proteins.

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