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Question

How much of CO2 is transported in blood by bicarbonate form?



A

88%

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B

78%

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C

80%

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D

70%

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Solution

The correct option is D

70%


The amount of CO2 transported in bicarbonate form in blood is almost close to 70%

CO2 is highly soluble and readily diffuses through cell membranes, moving from its site of production in the tissues into the blood.
When CO2 dissolves in water, some of it slowly reacts with the water molecules to form carbonic acid H2CO3, some of which then dissociates into a proton H+ and a bicarbonate ion HCO3.


Chemistry

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