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Which enzyme reduces pyruvic acid to lactic acid in muscles during hard exercise?
AAlcohol dehydrogenase
BPyruvate decarboxylase
CLactate dehydrogenase
DCitrate synthase enzyme
Answer & Solution
Correct answer: C. Lactate dehydrogenase
When oxygen is inadequate, lactate dehydrogenase uses NADH + H+ to reduce pyruvate to lactic acid.
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