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ZoologyNEET 2021Exchange and transport of gases

Breathing and Exchange of Gases

The partial pressures (in mm Hg) of oxygen (O2\mathrm{O_2}) and carbon dioxide (CO2\mathrm{CO_2}) at the alveoli (the site of diffusion) are:

  1. A.pO2p\mathrm{O_2} = 104 and pCO2p\mathrm{CO_2} = 40✓
  2. B.pO2p\mathrm{O_2} = 40 and pCO2p\mathrm{CO_2} = 45
  3. C.pO2p\mathrm{O_2} = 95 and pCO2p\mathrm{CO_2} = 40
  4. D.pO2p\mathrm{O_2} = 159 and pCO2p\mathrm{CO_2} = 0.3

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