medium · MCAT bio-biochem
In a yeast cell deprived of oxygen, what is the primary metabolic role of the conversion of pyruvate to ethanol?
- To produce additional ATP to power the cell.
- To regenerate NAD⁺ from NADH so that glycolysis can continue.
- To fully oxidize the carbon atoms remaining from glucose.
- To produce CO₂ as a byproduct for use in the Calvin cycle.
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