Question
Biology Question on Mechanism Of Breathing
The exchange of gases in the alveoli of the lungs takes place by
A
passive transport
B
active transport
C
osmosis
D
simple diffusion
Answer
simple diffusion
Explanation
Solution
The exchange of gases in the alveoli of the lungs takes place by simple diffusion. The exchange of gases between the alveoli and blood in the lung is the result of difference in partial pressure of respiratory gases.