Question

How are the lungs designed to maximize the exchange of gases?

Answer 1

Answer:

Alveolar sac is present inside the the lungs the air store in them

they are large in no.

lungs and alveloi both are stretchable so when we breath in they expand and more air come inside the lungs

Answer 2

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There are millions of alveoli in the lungs.

The presence millions of alveoli in the lungs provides a very large area for the exchange of gases.

And the ability of large surface area maximize the exchange gases.

For example– if all alveoli from the to human lungs are unfolded, they would give an area of about 80 square metres ( which is nearly the size of a Tennis Court ).

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