Glycolysis: Pathway and Significance · NCERT Biology

During the dehydration step of glycolysis, 2-phosphoglycerate is converted to phosphoenolpyruvate (PEP) by which enzyme?

  1. Mutase
  2. Isomerase
  3. Enolase
  4. Dehydrogenase
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Correct answer: Enolase

Enolase catalyzes the removal of a water molecule from 2-phosphoglycerate to form the high-energy compound phosphoenolpyruvate (PEP). This step prepares the molecule for the final ATP-generating reaction.

Difficulty: Medium Question 12 of 20

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