what is respiration ?for what purpose it is used?
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Cellular respiration is the primary by which cells in plants and animals break down sugar and turn it into energy, which is then used to perform at the cellular level. The purpose of cellular respiration is simple: it provides cells with the energy they need to function.
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Respiration is a chemical reaction that happens in all living cells, including plant cells and animal cells. It is the way that energy is released from glucose so that all the other chemical processes needed for life can happen. Do not confuse respiration with breathing (which is properly called ventilation).The main purpose of respiration is to provide
oxygen to the cells at a rate adequate to satisfy their metabolic needs. This involves
transport of oxygen from the lung to the
tissues by means of the circulation of blood.
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