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Breathing and Exchange of Gases — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYBreathing and Exchange of Gases2 Marks
Question
Compared to O2, diffusion rate of CO2 through the diffusion membrane, unit difference in partial pressure is much higher. Explain.
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Answer

Solubility is an important factor deciding diffusion rate. As the solubility of CO2 is 20-25 times higher than O2, diffusion of CO2 through the diffusion membrane per unit difference in partial pressure is much higher.

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