Question Detail
Question
In glycolysis, which one of the following is the substrate for the enzyme enolase?
Correct Answer
Option D is the correct answer.
Detailed Explanation
Enolase (also known as phosphopyruvate hydratase) catalyzes the conversion of 2-phosphoglycerate (2-phosphoglyceric acid) to phosphoenolpyruvate (PEP) in the ninth step of glycolysis. It removes a water molecule, creating a high-energy enol phosphate bond.
Hint
This enzyme catalyzes a dehydration reaction just before the substrate-level phosphorylation that produces ATP.