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Which of the following enzyme catalyzes the first step of glycolysis?

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Which of the following enzyme catalyzes the first step of glycolysis?

(a) Hexokinase

(b) Pyruvate kinase

(c) Glucokinase

(d) Phosphofructokinase-1

I have been asked this question by my college professor while I was bunking the class.

The origin of the question is Glycolysis in division Principles of Bioenergetics and Glycolysis of Biochemistry

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The correct answer is (a) Hexokinase

Explanation: The first of glycolysis is irreversible under intracellular conditions and is catalyzed by hexokinase.

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