Question

list three features of alveoli which enable them to perform their function

Answer 1

Explanation:

Here are some features of the alveoli that allow this: 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

Answer 2

Explanation:

Features of the alveoli

The alveoli are adapted to make gas exchange in lungs happen easily and efficiently. Here are some features of the alveoli that allow this:

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

The gases move by diffusion from where they have a high concentration to where they have a low concentration:

oxygen diffuses from the air in the alveoli into the blood

carbon dioxide diffuses from the blood into the air in the alveoli

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