Why carbon dioxide oxide is transported in the dissolved form in our blood as compared to oxygen?
Answers
Carbon dioxide is more soluble in blood plasma than oxygen, that is why, as compared to oxygen a much larger volume of carbon dioxide is transported in dissolved form in blood from tissues to the lungs
The solubility of O2 in water, the principal constituent of blood, is quite low compared to CO2, this is because of the following system:
CO2+2H2O⇌H3O++HCO−3
Oxygen therefore binds to the Fe in hemoglobin and is transported that way. This is also the reason why carbon dioxide is used in aerated drinks.
The reason for this is simply the logical fact that CO2 is much more soluble in the blood plasma than O2. (It is around roughly 20 times more soluble). Hence , 7% CO2 transport occurs in the dissolved form whereas only 2–3% of O2 is transported in this manner.
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