Why do cells produce more atp under aerobic conditions than under anaerobic conditions?

Cells produce more ATP or adenosine triphosphate under aerobic conditions due to the presence of oxygen, which is required to make ATP that create energy for cell to function well. Under aerobic conditions, the carbohydrates, proteins and fat are utilize in the electron transport chain to make large amount of ATP.

Meanwhile, in anaerobic condition, oxygen is limited and it can only create lactic acid to produce energy. Due to this, aerobic metabolism is 19 times more efficient than anaerobic glycolysis in ATP production.