Which enzyme reduces pyruvic acid to lactic acid in tired muscle?
AAlcohol dehydrogenase
BPyruvic dehydrogenase
CLactate dehydrogenase
DCitrate synthase
Answer & Solution
Correct answer: C. Lactate dehydrogenase
When oxygen is short, lactate dehydrogenase uses NADH + H+ to reduce pyruvic acid to lactic acid.
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