Gas Exchange ( Adaptations Of The Lungs And Its Alveoli)

Question 1

How are lungs adapted for GAS EXCHANGE?

Answer 1

Each lung has a large surface area

Contains millions of alveoli

Walls are one cell thick, allowing a fast diffusion rate

Question 2

How are the alveoli adapted for GAS EXCHANGE?

Answer 2

Each alveolus is surrounded by a large capillary network, which ensures a good blood supply.