Describe the role of haemoglobin in transport of respiratory gases

Answer:

Role of haemoglobin in transport of respiratory gases are:

- Oxygen is transported as oxyhaemoglobin in the erythrocytes.

- Oxygen binds to the Fe²⁺ part of haemoglobin and is carried as oxyhaemoglobin.

- Each molecule of haemoglobin can transport a maximum of four molecules of

oxygen.

- Carbon dioxide is transported as carbaminohaemoglobin.

- CO₂ combines with the amine radical of globin part of haemoglobin to form

carbaminohaemoglobin.

- About 23% of CO₂ is transported in this form.