Question

How are lungs designed in humans begins to maximise the area for exchange of gases?

Answer 1

Lungs play a major role in the respiratory system. In humans, a pair of lungs are designed in such a way that they are lined by a thin membrane, the smaller tubes called bronchioles a balloon-like structure called alveoli and network of blood capillaries increase the surface area for exchange of gases.

Answer 2

Answer:

Lungs have some adaptations in them so that efficient exchanges of gases take place. The adaptations are –

a) Increased surface area

b) Very fine and delicate surface for easy exchange of oxygen and carbon dioxide

c) Mechanism for moving the air in and out of respiratory surface where the oxygen is absorbed.