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Which of these enzymes in glycolysis do not take part in an irreversible reaction?

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Which of these enzymes in glycolysis do not take part in an irreversible reaction?

(a) Hexokinase

(b) Phosphofructokinase

(c) Pyruvate kinase

(d) Glucokinase

The question was asked in my homework.

This intriguing question originated from Respiration in division Bioenergetics and Metabolism of Life Sciences

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Correct choice is (d) Glucokinase

For explanation: Hexokinase, phosphofructokinase, and pyruvate kinase catalyzed reactions in glycolysis is irreversible while rest reactions are reversible in nature. So, the regulation of glycolysis is also done by allosteric regulation of these three enzymes.

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