Question

Explain the transport of oxygen and carbon dioxide in the blood?

Answer 1

The transport of oxygen in blood takes place through RBCs. during inhalation, oxygen is taken into the lungs and from the lungs, oxygen diffuses into the blood. As soon as it enters the blood in enters the RBC is where it binds to the haemoglobin. 3% of oxygen is dissolved in the blood where is 97% of transported oxygen is bound to haemoglobin. This oxygen then diffuses in the tissues.

Carbon dioxide is produced as a result of transpiration inside the body cells. from the cell the carbon dioxide diffuses into the blood where it is carried as:

1. Carbaminohemoglobin, when it is bound to haemoglobin.

2. Dissolved into the plasma.

3. Bicarbonate ions.

carbon dioxide is maximally transported it as bicarbonate ions and it is taken back to the lungs with the help of blood where it is released back into the atmosphere.

the diffusion of these gases takes place according to their partial pressures.