Zoology - Breathing and Exchange of Gases Question with Solution | TestHub

Rate of diffusion is affected by the following factors :

a. Concentration/pressure gradient.

b. Solubility of the gases (Solubility of${\mathrm{C}\mathrm{O}}_2$is 20–25 times higher than that of${\mathrm{O}}_2$, so${\mathrm{C}\mathrm{O}}_2$can diffuse at a higher rate).

c. Thickness of the membranes (Diffusion membrane at the level of alveoli is having a thickness of less than 1 mm, so it favours the diffusion of gases).