Question

the breathing cycle is rhythmic whereas exchange of gases is a continuous process.Justify this statement


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Answer 1

Breathing Cycle is a rhythmic process because contraction and relaxation of our chest takes place during breathing, But exchange of gases is a continuous process because it never stops it takes place all the time.

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Answer 2

Answer:

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