Question

Describe the role of haemoglobin in the transport of respiratory gases.

Answer 1

• Oxygen binds to the Fe²⁺ part of haemoglobin and is transported as oxyhaemoglobin through the RBCs of the blood.
• Each molecule of haemoglobin can transport a maximum of four oxygen molecules.
• CO₂ combines with the amine radial of haemoglobin to form carbamino haemoglobin and about 20 – 25% of CO₂ is transported in this form.