The two enzymes which catalyze the substrate-level phosphorylation of ADP to ATP in glycolysis are

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Pyruvate kinase and 3-phosphoglycerate kinase are the two enzymes responsible for substrate-level phosphorylation of ADP to ATP in glycolysis. Pyruvate kinase catalyzes the conversion of phosphoenolpyruvate to pyruvate with the release of ATP, while 3-phosphoglycerate kinase catalyzes the conversion of 1,3-bisphosphoglycerate to 3-phosphoglycerate with the release of ATP. Both of these reactions involve the transfer of a phosphate group from a high-energy intermediate to ADP, resulting in the synthesis of ATP.

The Two Enzymes Which Catalyze the Substrate-Level Phosphorylation of ADP