Biology · Breathing and Exchange of Gases
The partial pressures (in mm Hg) of oxygen (O2) and carbon dioxide (CO2) at alveoli (the site of diffusion) are:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1pO2 = 95 and pCO2 = 40
- 2pO2 = 40 and pCO2 = 45
- 3pO2 = 104 and pCO2 = 40✓
- 4pO2 = 159 and pCO2 = 0.3
Correct answer
pO2 = 104 and pCO2 = 40
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