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During blood clotting, the platelets release
Options
(a) thrombin
(b) fibrinogen
(c) prothrombin
(d) thrombokinase
Correct Answer:
thrombokinase
Explanation:
Thrombokinase is an enzyme secreted by the damaged tissues and blood platelets to convert a soluble protein in the blood stream, prothrombin into thrombin. Thrombin increases the rate of chemical reaction to form a network of insoluble fibrin, over the wound. When thrombokinase is released, it neutralizes the action of heparin (anticoagulant) so that clotting can effectively take place.
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Topics: Human Body Fluids and Excretory Products
(197)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The process by which organisms with different evolutionary history evolve similar
- If pollen of a flower falls on the stigma of another flower, belonging
- Which one of the following is the food chain operating in ponds, lakes or sea?
- The largest corpuscles in mammalian blood is
- Sweating is meant for
Topics: Human Body Fluids and Excretory Products (197)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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