Ex

  Biology (NTSE/Olympiad)  

3. Transportation

Function of Blood

Function of Blood :
Blood maintains body temperature constant and distributes and exchanges water between cytoplasm of cells.
Temperature regulation :
Heat produced by deeper tissues is taken to the body surface, so that it may be given out and thus body temperature is maintained.
Maintainance of body pH :
In RBC, some carbon dioxide combines with water to form carbonic acid (H2CO3) that is disossociated into H+ तथा HCO3 . These ions combines with ions of plasma to maintain a constant pH.
Maintenance of pressure :
Arteries produce a proper pressure of blood that helps to balance the atmospheric pressure.
Blood Clotting :
Sequence of events during clotting of blood :

Flow Chart Showing Clotting of Blood

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