Question

how does haemoglobin help in the transportation of carbon dioxide in our body??

Answer 1

About 20-25% of CO₂ is carried as carbamino-haemoglobin by blood. The binding of CO₂ with haemoglobin is related to the partial pressure of CO₂ and O₂. When partial pressure of CO₂ is high and that of O₂ is low as in tissues, carbon dioxide binds more efficiently with haemoglobin and is transported to lungs through blood. When partial pressure of CO₂ is low and that of O₂ is high, dissociation of CO₂ from carbamino-haemoglobin takes place as in alveoli. CO₂ is bound with haemoglobin in tissue and dissociates in alveoli where it is released.