Approximately seventy percent of carbon dioxide absorbed by the blood will be transported to the lungs

Options

A. as bicarbonate ions
B. in the form of dissolved gas molecules
C. by binding to RBC
D. as carbaminohaemoglobin

Answer

A

Explanation

The largest fraction of carbon dioxide i.e about 70% is converted to bicarbonates `(HCO_(3)^(-))` and transproted in the plasma.

About 23% of `CO_(2)` is carried by haemoglobin as carbaminohaemoglobin
`(CO_(2) +Hb (haemoglobin) hArr HbCO_(3))`