McqMate
| Q. |
Respiration process requires – |
| A. | heat |
| B. | water |
| C. | oxygen |
| D. | sunlight |
| Answer» C. oxygen | |
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Explanation: In physiology, respiration (often confused with breathing) is defined as the transport of oxygen from the outside air to the cells within tissues, and the transport of carbon dioxide in the opposite direction. This is in contrast to the biochemical definition of respiration, which refers to cellular respiration: the metabolic process by which an organism obtains energy by reacting oxygen with glucose to give water, carbon dioxide and ATP (energy). Respiratory behavior is correlated to the cardiovascular behavior to control the gaseous exchange between cells and blood. |
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