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प्रश्न
Which one of the following is necessary to start clotting of blood?
पर्याय
Heparin
Serotonin
Thromboplastin and Ca2+
Fibrinogen and prothrombin
MCQ
उत्तर
Thromboplastin and Ca2+
Explanation:
Prothromboplastin is transformed into thromboplastin in the presence of Ca++++. Prothrombin is transformed into thrombin by thromboplastin and Ca++++. Fibrinogen is then transformed into fibrin by the thrombin. This fibrin helps the blood to clot.
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