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In plant cells under low-oxygen conditions, pyruvate is typically converted into

Alactic acid by lactate dehydrogenase
Bethanol and CO₂ by alcoholic fermentation
Cregenerated glucose by gluconeogenesis
Dglycerol via triose phosphate reduction
Answer & Solution
Correct answer: B. ethanol and CO₂ by alcoholic fermentation
Under anaerobic conditions plants run alcoholic fermentation: pyruvate → acetaldehyde → ethanol, releasing CO₂. Lactic acid fermentation is typical of animal muscle, not plants. Glucose synthesis would require gluconeogenesis, which is not the default fermentation route.
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