The composition of air in the atmosphere and in the alveoli differs. In both cases, the relative concentration of gases is nitrogen > oxygen > water vapor > carbon dioxide. ... In addition, alveolar air contains a greater amount of carbon dioxide and less oxygen than atmospheric air
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defusion is process in which transport is driven by a concentration gradient is called transparent of atmospheric air
The composition of air in the atmosphere and in the alveoli differs. In both cases, the relative concentration of gases is nitrogen > oxygen > water vapor > carbon dioxide. ... In addition, alveolar air contains a greater amount of carbon dioxide and less oxygen than atmospheric air