Carbon dioxide is carried in three forms in the blood.Ranking them from greatest to least amount carried,the sequence would be:
A) dissolved in the plasma, carbaminohemoglobin, and bicarbonate ion.
B) carbaminohemoglobin, bicarbonate ion, and dissolved in plasma.
C) bicarbonate ion, dissolved in plasma, and carbaminohemoglobin.
D) bicarbonate ion, carbaminohemoglobin, and dissolved in plasma.

Question

Quizplus · Accepted Answer

The majority of carbon dioxide is transported in the blood as bicarbonate ions (HCO3-), which is the largest component. The next significant form is carbaminohemoglobin, which is CO2 bound to hemoglobin. The least amount of CO2 is carried dissolved directly in the plasma.

Carbon Dioxide Is Carried in Three Forms in the Blood