In cellular respiration which step produces the majority of ATP?
Glycolysis is the first step of cellular respiration. Glycolysis produces much less ATP (2) than the combined total ATP of the rest of aerobic respiration (about another 30). The majority of ATP is produced by the electron transport chain. Cellular respiration is considered more efficient than glycolysis because it produces significantly more ATP. ATP stands for adenosine triphosphate.
Aerobic cellular respiration occurs in the presence of oxygen and anaerobic cellular respiration occurs in the absence of oxygen. Without the presence of oxygen, cellular respiration cannot go past Glycolysis (the first step of cellular respiration) and will be forced to find an alternative route which is, fermentation. Hope this helped.
What would happen to the cellular respiration process if the enzyme for one step of the process was missing or defective?
Cellular Respiration is a three step process; Glycolysis, the Krebs Cycle, and the Electron Transport Chain. Effective cellular respiration is an aerobic cycle, meaning that it requires oxygen. The first step, glycolysis, is an anaerobic process, meaning it does not require oxygen. Therefore, glycolysis is always able to take place. The next step is the Krebs Cycle. This is an aerobic process and does not take place in the absence of oxygen. If there is…