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Q How does the solubility of carbon dioxide compare to that of oxygen?

ID: #10037 Respiratory system 130 views
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#10037Q ID
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Respiratory systemTopic
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  • A More ✔ ✖
  • B Less ✔ ✖
  • C 50 times more ✔ ✖
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The solubility of carbon dioxide is much higher than that of oxygen. Carbon dioxide is 20-25 times more soluble than oxygen in water, which is the main determinant of gas exchange across the alveolar-capillary membrane. As a result, the partial pressure gradient required for the diffusion of carbon dioxide is much smaller compared to oxygen. This high solubility of carbon dioxide also allows it to be transported in the blood in various forms, including dissolved in plasma, bound to hemoglobin, or as bicarbonate ions.

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