Right comparison of partial pressure of oxygen and partial pressure of carbon dioxide in the atmospheric air than in alveolar air is _________(a) partial pressure of oxygen lesser, partial pressure of carbon dioxide higher(b) partial pressure of oxygen higher, partial pressure of carbon dioxide lesser(c) partial pressure of oxygen lesser, partial pressure of carbon dioxide higher(d) partial pressure of oxygen lesser, partial pressure of carbon dioxide lesserThe question was posed to me in examination.My query is from Exchange of Gases topic in section Breathing and Exchange of Gases of Biology – Class 11

Right comparison of partial pressure of oxygen and partial pressure of

1.	Right comparison of partial pressure of oxygen and partial pressure of carbon dioxide in the atmospheric air than in alveolar air is _________(a) partial pressure of oxygen lesser, partial pressure of carbon dioxide higher(b) partial pressure of oxygen higher, partial pressure of carbon dioxide lesser(c) partial pressure of oxygen lesser, partial pressure of carbon dioxide higher(d) partial pressure of oxygen lesser, partial pressure of carbon dioxide lesserThe question was posed to me in examination.My query is from Exchange of Gases topic in section Breathing and Exchange of Gases of Biology – Class 11
Answer» Correct option is (b) PARTIAL pressure of oxygen higher, partial pressure of carbon dioxide lesser For explanation: Partial pressure of oxygen in ATMOSPHERIC air is 159 MM Hg and in ALVEOLI is 104 mm Hg. Partial pressure of carbon dioxide in atmospheric air is 0.3 mm Hg and in alveoli is 40 mm Hg.

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