How many major ways are there in which cells handle pyruvic acid produced by glycolysis?

Step-by-step solution

There are three major ways in which different cells handle pyruvic acid produced by glycolysis . These are lactic acid fermentation, alcoholic fermentation and aerobic respiration. Fermentation takes place under anaerobic conditions in many prokaryotes and unicellular eukaryotes. For the complete oxidation of glucose to CO2 and H2O, however, organisms adopt Krebs’ cycle which is also called as aerobic respiration. This requires O2 supply.