how does calcium play an important role in clotting of blood............. plz reply as soon as possible
Blood coagulation is a complex biochemical process involving platelets and many proteins (enzymes). Calcium is involved at several steps in the blood clotting, including the activation of the platelets, activation of clotting factors and enzymes which are present in the blood in inactive form. The Ca2+ ions bind with prothrombin and covert it into active form thrombin. The thrombin in turn converts fibrinogen into fibrin (a thread like protein) which traps red blood cells and helps in the formation of clot.