How is oxygen and carbon dioxide transported in human beings ?
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(i) Transport of oxygen : Haemoglobin present in the blood takes up the oxygen from the air in the lungs. It carries the oxygen to tissues which are deficient in oxygen before releasing it.
(ii) Transport of carbon dioxide : Carbon dioxide is more soluble in water. Therefore, it is mostly transported from body tissues in the dissolved form in our blood plasma to lungs. Here it diffuses from blood to air in the lungs
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Respiration is the process through which living organisms take in oxygen and give out carbon dioxide to release energy. The transport of gases during respiration, both oxygen and carbon dioxide are carried out by the blood cells
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