Question

Select the incorrect statement regarding the transport of gases in the blood.

• A. About 97% of O₂ is transported by RBCs in the blood.
• B. Carbonic anhydrase is present in very high concentrations in RBC
• C. High pCO₂ and low pO₂ in tissue help in the binding of carbon dioxide
• D. CO₂ is carried in haemoglobin as carboxyhemoglobin

Answer 1

Answer: (D)

Carbaminohemoglobin (or Carbaminohemoglobin, also known as carbhaemoglobin and carbohaemoglobin) is a compound of haemoglobin and carbon dioxide and is one of the forms in which carbon dioxide exists in the blood.
Carboxyhemoglobin(COHb) is a stable complex of carbon monoxide and hemoglobin that forms in red blood cells upon contact with carbon monoxide (CO).