The two gases exchanged between the body and the air during respiration are oxygen and carbon dioxide. Oxygen is taken in through inhalation and delivered to the cells in the body through the bloodstream, while carbon dioxide produced by cellular respiration is carried back to the lungs and exhaled. This gas exchange occurs in the alveoli of the lungs, where oxygen diffuses from the air into the bloodstream and carbon dioxide diffuses from the bloodstream into the air.
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Oxygen and carbon dioxide are exchanged between the body and the air during respiration. Oxygen is inhaled and delivered to the cells in the body, while carbon dioxide is produced by the cells and exhaled. This exchange happens in the alveoli of the lungs through diffusion.
