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Question
Differentiate between Aerobic respiration and fermentation.
Solution
| Aerobic respiration | Fermentation | |
| 1. | It takes place in higher organisms. | It takes place in both higher and lower organisms. |
| 2. | It takes place in cytoplasm and mitochondria. | It takes place in cytoplasm. |
| 3. | It involves the participation of free molecular oxygen. | It does not involve participation of free molecular oxygen. |
| 4. | It involves many steps – glycolysis, link reaction, Krebs cycle and ETS. | It involves only glycolysis, decarboxylation and reduction. (alcoholic fermentation) |
| 5. | Oxidation of food is complete. | Oxidation of food is incomplete. |
| 6. | It produces CO2 and H2O. | It produces either ethanol or lactic acid and CO2 depending upon the type of fermentation. |
| 7. | It releases more energy, i.e. 38 ATP. | It releases less energy, i.e. 2 ATP. |
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