Respiration is the break down of molecules in living cells to release energy. There are two types of respiration: anaerobic, which does not require oxygen, and aerobic, which requires oxygen.
| ANAEROBIC RESPIRATION IN PLANTS | ANAEROBIC RESPIRATION IN ANIMALS |
| The end-products of anaerobic respiration in plants are ethanol and CO2 | The end-products of anaerobic respiration in animals is lactic acid. Absence of CO2 |
| More heat energy is released | Less heat energy is released |
| CO2 released causes foaming | No CO2 released, so no foaming |
