Step [7] of glycolysis is shown below. Which statement concerning this step is true?

Question

Quizplus · Accepted Answer

In step 7 of glycolysis, the enzyme phosphoglycerate kinase catalyzes the transfer of a phosphate group from 1,3-bisphosphoglycerate to ADP, forming ATP and 3-phosphoglycerate. This provides the necessary energy for the phosphorylation of ADP, making option B the correct choice. The hydrolysis of ATP (not 1,3-bisphosphoglycerate) provides the necessary energy for this step, making option A incorrect. The energy from the hydrolysis of 1,3-bisphosphoglycerate is used to form ATP, not stored in ADP, making option C incorrect. Finally, the hydrolysis of 1,3-bisphosphoglycerate is actually a highly favorable reaction, as it releases a large amount of energy, making option D incorrect.

Step [7] of Glycolysis Is Shown Below