Function of Blood in Transport

Blood is an important medium in
  1. transport of oxygen and carbon dioxide
    1. In blood, oxygen combines with haemoglobin in the red blood cell to form oxyhaemoglobin.
    2. Oxygen is transported in the form of oxyhaemoglobin to the body cells which lack of oxygen.
    3. At the body cells, oxyhaemoglobin breaks down to release the oxygen to the body cells for cell respiration.
    4. Carbon dioxide is transported by the blood in ion hydrogen carbonate (ion bicarbonate) in the blood plasma carbaminohaemoglobin in the red blood cell.
  2. transport of water
  3. transport of digested food, minerals and vitamins
  4. transport of excretion
  5. transport of chemical substances such as hormones
  6. transport of heat