Question

Glycolysis is the first stage of cellular respiration producing ATP. What is the net gain of ATP molecules per molecule of glucose from glycolysis?
A. 1
B. 2
C. 4
D. 36

Answer 1

cellular respiration uses energy in glucose to make ATP. Aerobic (“oxygen-using”) respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport. In glycolysis, glucose is split into two molecules of pyruvate. This results in a net gain of two ATP molecules.