Question

(a) "The breathing cycle is rhythmic whereas exchange of gases is a
continuous process". Justify this statement.​

Answer 1

Answer:

The gas inhaled reaches to each and every cell through blood. So the exchange of gases is a continuous process as it takes place between the blood and each and every cell, by diffusion.

Explanation:

Answer 2

Answer:

The breathing cycle involves inhalation and exhalation of air due to alternate  expansion and contraction of thoracic cavity. Thus it is the rhythmic process. But  exchange of gases is a continuous process as it takes place between the blood and  each and every cell, by diffusion.