Question
Approximately seventy percent of carbon dioxide absorbed by the blood will be transported to the lungs
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as bicarbonate ion
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in the form of dissolved gas molecules
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by binding to RBC
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as carbamino - haemoglobin
Solution
A.
as bicarbonate ion
Because of its high solubility, about 7% of carbon dioxide gets dissolved in the blood plasma and is carried to the wings in the same way. The largest fraction of carbon dioxide, i.e., (about 70% ) is converted to bicarbonates (HCO3-) and transported in the plasma.