The partial pressures (in mm Hg) of oxygen (O2 ) and carbon dioxide (CO2 ) at alveoli (the site of diffusion) are : (1) pO2=95 and pCO2=40 (2) pO2=159 and pCO2=0.3 (3) pO2=104 and pCO2=40 (4) pO2=40 and pCO2=45
Option 2) The partial pressures (in mm Hg) of oxygen (O2) and carbon dioxide (CO2) at alveoli (the site of diffusion) are: a) pO2 = 159 and pCO2 = 0.3.
