| Characteristic | Fermentation | Cellular Respiration |
|---|---|---|
| Starting reactants | Glucose | Glucose, oxygen |
| Pathways involved | Glycolysis, several others | Glycolysis, Krebs cycle, electron transport |
| End products | CO2 and alcohol or CO2 and lactic acid | CO2, H2O |
| Number of ATP molecules produced | 2 | 36 |