Haemoglobin is the pigment which transports oxygen and carbon dioxide in the human body.

Oxygen combines with hemoglobin forming oxy-hemoglobin and is transported inside our body.

Hemoglobin can carry a very small quantity of carbon dioxide in the form of carbamino-hemoglobin.

Haemoglobin is a respiratory pigment found in RBCs which helps in transport of respiratory gases.