Question

The exchange of gases between blood capillaries and alveoli in the lungs is through:

• A. simple diffusion
• B. active transport
• C. osmosis
• D. facilitated diffusion

Answer 1

The correct option is A simple diffusion

Gas exchange takes place in the millions of alveoli present in the lungs and the capillaries that envelop them. The exchange of gases between blood capillaries and alveoli in the lungs is through the process of simple diffusion.