Respiration in Plants · NEET Preparation Botany

During alcoholic fermentation, pyruvate is converted to ethanol and carbon dioxide. Which enzyme catalyzes the decarboxylation of pyruvate?

Practice question from Respiration in Plants (NEET Preparation Botany), with the correct answer and a step-by-step solution.

medium · MCQ · Q-C8A1E0

During alcoholic fermentation, pyruvate is converted to ethanol and carbon dioxide. Which enzyme catalyzes the decarboxylation of pyruvate?

  1. A.Pyruvate dehydrogenase
  2. B.Pyruvate decarboxylaseCorrect answer
  3. C.Alcohol dehydrogenase
  4. D.Lactate dehydrogenase

Solution

In alcoholic fermentation, pyruvate is first decarboxylated to acetaldehyde and carbon dioxide by the enzyme pyruvate decarboxylase, followed by reduction to ethanol by alcohol dehydrogenase.

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