The enzyme that is necessary to bring about clotting of blood is
Question: The enzyme that is necessary to bring about clotting of blood is
(A) peptidase
(B) amylase
(C) lipase
(D) thrombokinase
Answer: (D) thrombokinase
Explanation: The clotting of blood is a chain reaction initiated by the enzyme Thrombokinase produced by the platelets. This causes Prothrombin and calcium salts in plasma to join and produce thrombin. Thrombin combines with Fibrinogen to produce Fibrin threads which entangle the corpuscles to create a clot.

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