(i) pO2 lesser, pCO2 higher(ii) pO2 higher, pCO2 lesser(iii) pO2 higher, pCO2 higher(iv) pO2 lesser, pCO2 lesser

(i) pO2 lesser, pCO2 higher(ii) pO2 higher, pCO2 lesser(iii) pO2 highe

1.	(i) pO2 lesser, pCO2 higher(ii) pO2 higher, pCO2 lesser(iii) pO2 higher, pCO2 higher(iv) pO2 lesser, pCO2 lesser
Answer» (ii) pO2 higher, pCO2 lesser The partial pressure of oxygen in atmospheric air is higher than that of oxygen in alveolar air. In atmospheric air, pO2 is about 159 mm Hg. In alveolar air, it is about 104 mm Hg. The partial pressure of carbon dioxide in atmospheric air is lesser than that of carbon dioxide in alveolar air. In atmospheric air, pCO2 is about 0.3 mmHg. In alveolar air, it is about 40 mm Hg.

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(i) pO2 lesser, pCO2 higher(ii) pO2 higher, pCO2 lesser(iii) pO2 higher, pCO2 higher(iv) pO2 lesser, pCO2 lesser

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