Question

Alveoli increases the surface area of respiration . Justify.​

Answer 1

Answer:

there are several alveoli in the lungs with a form that raises the surface area more. A wide diffusion gradient means that the concentration of oxygen in the alveoli is greater than in the capillaries, meaning that oxygen is transported from the alveoli to the blood.

Answer 2

Answer:

Each lung contains millions of alveoli in singular alveolus which seems like sacs. The small round alveoli allow for an amazingly large surface area for this gas exchange to take place. Because of large surface area , more gaseous exchange occurs.