What is the primary form in which CO₂ is transported in the blood?
A)physically dissolved
B)bound to hemoglobin
C)bound to plasma protein
D)as bicarbonate
E)as carbonic anhydrase

Question

Quizplus · Accepted Answer

The primary mechanism for CO₂ transport in the blood is conversion to bicarbonate (HCO₃⁻) and transport in the plasma. This process is catalyzed by carbonic anhydrase, an enzyme present in red blood cells. About 70% of CO₂ is transported in the form of bicarbonate, with the remainder physically dissolved or bound to hemoglobin.

What Is the Primary Form in Which CO₂ Is Transported