How is carbon dioxide transported in the blood?
A) 1-2% dissolved in plasma; 24% as carbaminohemoglobin; 75% as bicarbonate ion
B) 1-2% dissolved in plasma; 70% as carbaminohemoglobin; 28% as bicarbonate ion
C) 7% dissolved in plasma; 23% as carbaminohemoglobin; 70% as bicarbonate ion
D) 23% dissolved in plasma; 70% as carbaminohemoglobin; 7% as bicarbonate ion

Question

Quizplus · Accepted Answer

Carbon dioxide is transported in the blood in three main forms: approximately 7% is dissolved directly in plasma, about 23% is carried in combination with hemoglobin as carbaminohemoglobin, and the majority, around 70%, is transported as bicarbonate ions, which are formed as a result of the reaction between CO2 and water in red blood cells.

How Is Carbon Dioxide Transported in the Blood