Question
Differentiate between Respiration and Combustion
| Respiration | Combustion | |
| 1 | It occurs inside living cells | It is a noncellular process. |
| 2 | Respiration is biochemical process. | Combustion is physio-chemical process |
| 3 | Most of the energy is trapped in ATP molecules | ATP is not formed |
| 4 | Oxidation occur at the end of reaction(terminal oxidation) between reduced coenzymes and oxygen | The substrate is directly oxidised in combustion |
| 5 | Energy is released in stages as chemical bonds are broken in steps | Energy is released in a single step as all chemical steps occurs simultaneously |
| 6 | A number of intermediates are formed. They are used in the synthesis of different organic compounds | No intermediates are produced in combustion |
| 7 | A number of enzymes are required., one for each step or reaction. | Burning is a non-enzymatic process |
| 8 | Less than 50% energy is liberated in the form of heat energy. Light is rarely produced. | Energy is libreated in the form of both light abd heat energy |
| 9 | Temperature is not allowed to rise | Temperature become very high |
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