I'm aware that ultimately in the human body, after sugar is converted into pyruvate, then if fermentation happens it will be converted into lactate, or if aerobic respiration happens then it won't. read more
Pyruvic acid production by glycolysis In glycolysis, phosphoenolpyruvate (PEP) is converted to pyruvate by pyruvate kinase. This reaction is strongly exergonic and irreversible; in gluconeogenesis, it takes two enzymes, pyruvate carboxylase and PEP carboxykinase, to catalyze the reverse transformation of pyruvate to PEP. read more