Question

Describe the step in which ATP is first made in glycolysis. Be sure to include the number of net ATPs at the end of this step and why this is the case. Substrate: _______ Product: _______ Enzyme: _______ Number of ATPs made: _______. Describe:

Answer 1

ATP is first made in glycolysis during the conversion of phosphoenolpyruvate to pyruvate by pyruvate kinase, resulting in the production of 2 molecules of ATP.

Step-by-step explanation:

The step in which ATP is first made in glycolysis is the conversion of phosphoenolpyruvate (substrate) to pyruvate (product) by the enzyme pyruvate kinase.

This step occurs in the second phase of glycolysis and is responsible for generating 2 molecules of ATP through substrate-level phosphorylation.

The reaction is as follows: phosphoenolpyruvate + ADP -> pyruvate + ATP.