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What is the first step in the payoff phase of glycolysis?(a) Reduction of 1, 3-bisphosphoglycerate to glyceraldehyde 3-phosphate(b) Oxidation of glyceraldehyde 3-phosphate to 1, 3-bisphosphoglycerate(c) Reversible conversion of dihydroxyacetone phosphate to glyceraldehyde 3-phosphate(d) Irreversible conversion of dihydroxyacetone phosphate to glyceraldehyde 3-phosphateI had been asked this question in an online quiz.My question is based upon Glycolysis in section Principles of Bioenergetics and Glycolysis of Biochemistry

Answer»

Right choice is (b) OXIDATION of glyceraldehyde 3-phosphate to 1, 3-bisphosphoglycerate

The explanation is: Glyceraldehyde 3-phosphate dehydrogenase catalyzes the FIRST step in the PAYOFF phase, oxidation of glyceraldehyde 3-phosphate to 1, 3-bisphosphoglycerate.



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