Distinguish between respiration and combustion.
Respiration | Combustion |
1. It only happens in live cells. | 1. It doesn't happen inside a living cell. |
2. It's done with the help of a variety of enzymes. | 2. This procedure does not require the use of enzymes |
3. Food oxidation and energy liberation occur in a step-by-step process. | 3. The compounds are oxidized. Instantaneously, with a burst of energy. |
4. It takes place at the organism's body temperature. | 4. A fire with a high temperature is caused by a quick release of energy. |
5. 60 percent of energy is lost as body heat, whereas 40 percent is converted into new chemical energy (ATP). | 5. Combustion energy is dispersed as heat and, to a lesser extent, light. |