1D: Bioenergetics & Metabolism — Flashcards

Question

What makes PFK-1 especially important in glycolysis?

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Answer

It catalyzes the committed step.

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Question

Why does NADH produce more ATP than FADH $_{2}$ in the ETC?

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Answer

Complex II pumps no protons, so FADH $_{2}$ yields less ATP.

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Question

What are the approximate ATP yields of NADH and FADH $_{2}$ in the ETC?

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Answer

NADH: about $2.5$ ATP; FADH $_{2}$ : about $1.5$ ATP.

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Question

What is the approximate ATP yield of complete glucose oxidation?

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Answer

About $30$ - $32$ ATP, shuttle-dependent.

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