Question

how are alveoli designed and why

Answer 1

The alveoli are adapted to make gas exchange in lungs happen easily and efficiently. ... they give the lungs a really big surface area. they have moist, thin walls (just one cell thick) they have a lot of tiny blood vessels called capillaries.Alveoli provide a surface for the exchange of gases. An extensive network of blood vessels is present in the wall of the alveoli. ... Air is sucked into the lungs and alveoli. The oxygen from the breath, diffuses into the blood and CO2 from the blood brought from the body, diffuses out into the air.

Answer 2

Alveoil are designed like the have so many small blood vessels.

Reason→ It need to exchange gasses in lungs, so they need so much flood flow in lungs with the help of Alveoil.

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#Amrit⭐