| Glycolysis | Fermentation |
| Glycolysis is a common pathway for both aerobic and anaerobic modes of respiration. |
Fermentation is a type of anaerobic respiration which occurs in the absence of oxygen. |
| Glucose is split into two molecules of pyruvic acid during glycolysis. |
During fermentation, pyruvic acid is converted to ethyl alcohol (yeast and some other microbes) or lactic acid (muscle cells of humans). |
| Glycolysis results in a net gain of 2 molecules of ATP. |
No ATP is produced during fermentation |
| It gives out two molecules of NADH per glucose molecule. |
It generally utilizes NADH produced during glycolysis. |
What is the significance of the stepwise release of energy in respiration?
Discuss “The respiratory pathway is an amphibolic pathway”.
What are the assumptions made during the calculation of net gain of ATP?