alleryAlcoholic fermentation by yeast yields
ACitrate from pyruvate via OAA
BEthanol and CO2 from pyruvate
CLactic acid from pyruvate only
DAcetyl CoA from pyruvate only
Answer & Solution
Correct answer: B. Ethanol and CO2 from pyruvate
Yeast under anaerobic conditions: pyruvate decarboxylase removes CO2 (giving acetaldehyde)
alcohol dehydrogenase reduces acetaldehyde to ethanol, regenerating NAD+ from NADH.
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