Question

How can diffusion of Oxygen and carbon dioxide take place between alveoli and blood?
plz answer quickly​

Answer 1

Here you see red blood cells traveling through the capillaries. The walls of the alveoli share a membrane with the capillaries. That's how close they are.

This lets oxygen and carbon dioxide diffuse, or move freely, between the respiratory system and the bloodstream.

Answer 2

Explanation:

Here you see red blood cells traveling through the capillaries. The walls of the alveoli share a membrane with the capillaries. That's how close they are. This lets oxygen and carbon dioxide diffuse, or move freely, between the respiratory system and the bloodstream