The partial pressures (in mm Hg) of oxygen () and carbon dioxide () at alveoli (the site of diffusion) are [2021]
= 159 and = 0.3
= 104 and = 40
= 40 and = 45
= 95 and = 40
(2)
The partial pressure (in mm Hg) of oxygen and carbon dioxide at alveoli are 104 and 40 respectively.
The partial pressure of oxygen in the alveoli of the lungs is [2016]
equal to that in the blood
more than that in the blood
less than that in the blood
less than that of carbon dioxide
(2)
The partial pressure of oxygen in alveolar air is 104 mmHg whereas it is 40 mmHg in deoxygenated blood and 95 mmHg in oxygenated blood.
