Glycolysis is a series of biochemical reactions that break down a glucose molecule into two molecules of pyruvic acid. Much of this energy is conserved by the coupled phosphorylation of four molecules of ADP to ATP. The overall Glycolysis step can be written as a net equation.
The net chemical equation for glycolysis is as following.
The net yield is two molecules of ATP per molecule of glucose used because two molecules of ATP were invested in the preparatory phase. The Fates of Pyruvate. Substrate -level phosphorylation where a substrate of glycolysis donates a phosphate to ADP occurs in two steps of the second-half of glycolysis to produce ATP. Thus two molecules of ATP are generated in the conversion of glucose into two molecules of pyruvate.