To produce 4 ATP requires 122 kJ/mol. Which reactions in the glycolytic pathway produce enough energy to be able to overcome this deficit?
A) hexokinase, phosphofructokinase-1, and pyruvate kina
B) hexokinase, phosphofructokinase-1, and pyruvate kinase
C) phosphofructokinase-1, aldolase, and pyruvate kinase
D) hexokinase, enolase, and pyruvate kinase

Question

Quizplus · Accepted Answer

Hexokinase, phosphofructokinase-1, and pyruvate kinase are the three reactions in the glycolytic pathway that generate ATP through substrate-level phosphorylation. These reactions produce a total of 4 ATP molecules, which is exactly the amount needed to overcome the energy deficit required to produce 4 ATP molecules. Therefore, choice B is the best answer.

To Produce 4 ATP Requires 122 KJ/mol