CO2 diffuses more easily through the respiratory membrane than O2 because it is-
Ans. (b) More soluble in plasma(Ref: Ganong, 25th ed/p.639)The diffusion coefficient of CO2 is about 20 times that of O2 . So, CO2 diffuses much faster and easily than O2
Less dense
More soluble in plasma
Less molecular weight
Less PCO2 in the alveoli
Respiratory System