In lactic acid fermentation, what happens to NADH?

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Multiple Choice

In lactic acid fermentation, what happens to NADH?

The main idea is that fermentation must recycle NAD+ to keep glycolysis going without oxygen. In lactic acid fermentation, NADH donates its electrons to pyruvate via the enzyme lactate dehydrogenase. This oxidizes NADH back to NAD+ and reduces pyruvate to lactate. By regenerating NAD+, glycolysis can continue to produce a small amount of ATP even when aerobic respiration isn’t possible. NADH is not turned into NADP+, not decomposed, and not converted directly into ATP; instead, its electrons are used to regenerate NAD+ while forming lactate.

The main idea is that fermentation must recycle NAD+ to keep glycolysis going without oxygen. In lactic acid fermentation, NADH donates its electrons to pyruvate via the enzyme lactate dehydrogenase. This oxidizes NADH back to NAD+ and reduces pyruvate to lactate. By regenerating NAD+, glycolysis can continue to produce a small amount of ATP even when aerobic respiration isn’t possible. NADH is not turned into NADP+, not decomposed, and not converted directly into ATP; instead, its electrons are used to regenerate NAD+ while forming lactate.

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