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NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES

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Following is the correct order of diffusion rate of oxygen, carbon dioxide and nitrogen from lungs to blood through the respiratory membrane

View answer and explanation

Correct option: A

C{O_2} > {O_2} > {N_2}

Option A (

CO_2 > O_2 > N_2

) is correct because the diffusion rate is proportional to the solubility of the gas, and

CO_2

is much more soluble than

O_2

and

N_2

.

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