Question

explain how diffusion help with exchange of gases in human lungs​

Answer 1

Answer:

Here is ur answer mate

Explanation:

Diffusion is a process in which transport is driven by a concentration gradient. ... The air in the lungs has a higher concentration of oxygen than that of oxygen-depleted blood and a lower concentration of carbon dioxide. This concentration gradient allows for gas exchange during respiration.

Hope it helped.

Answer 2

Answer:

The diffusion of gases happens in the alveoli of the lungs. When we breathe oxygen reaches the alveoli, also carbon dioxide rich blood will also reach the alveoli via the heart. The alveoli is surrounded by bold capillaries which will have blood. Therefore, oxygen from the alveoli will reach the blood and carbon dioxide from the blood will reach the alveoli because of diffusion. This is how exchange of gases happen.