Question
State five differences between aerobic and anaerobic respiration.
Answer
| Aerobic respiration | Anaerobic respiration |
|---|---|
| - Oxygen is necessary for the complete oxidation of the substrates. | - Oxygen is not required and the substrate is not completely broken down, lactic acid and alcohol are formed. |
| - It is more efficient because it releases large amount of energy. One molecule of glucose gives 38ATP molecule | - It is inefficient because it releases less energy. One molecule of glucose gives 2ATP molecules |
| - Energy is released slowly in small amounts and in steps | - Energy is released faster over a short period |
| - The end products are water and carbon(iv) oxide which diffuse out of the cells before they accumulate. | - The end products are alcohol in plants and lactic acid in animals and can accumulate fast to toxic levels. |
| - It takes place in the cytoplasm and mitochondria. | - It takes place in the cytoplasm. |
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