In the production of ATP during glucose metabolism in erythrocytes, which of the following is the immediate donor of the phosphoryl group to ADP?

Question

Quizplus · Accepted Answer

Phosphoenolpyruvate (PEP) donates a phosphoryl group to ADP to form ATP in the glycolytic pathway, specifically in the reaction catalyzed by pyruvate kinase. The phosphate donors during glycolysis are 1,3-bisphosphoglycerate and phosphoenolpyruvate. These high-energy intermediates of glycolysis function the same regardless of the cell in which glycolysis is occurring.

In the Production of ATP During Glucose Metabolism in Erythrocytes