| Aerobic respiration | Anaerobic respiration |
| (1) It uses oxygen for deriving energy | it occurs in the absence of oxygen |
| (2) It occurs in cytoplasm and mitochondria | It occurs in cytoplasm |
| (3) The end products are carbon dioxide & water | The end products are ethyl alcohol and carbon dioxide |
| (4) Complete oxidation of the respiratory substrate takes place | Incomplete oxidation of the respiratory substrate takes place. |
| (5) 36-38 ATP molecules lire produced | only 2 ATP molecules are produced |