Question
Biology Question on Exchange Of Gases
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
B
pO2=104 and pCO2=40
C
pO2=40 and pCO2=45
D
pO2=95 and pCO2=40
Answer
pO2=104 and pCO2=40
Explanation
Solution
The correct answer is option (B): pO2=104 and pCO2=40