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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
- Respiratory cycle where NADH₂ are produced is
- The basic unit of biological classification is
- The plant responds to photoperiods due to the presence of
- Which enzyme is used as ‘molecular scissor’ in genetic engineering?
- Disorder in which β-lymphocytes and T-lymphocytes are not formed is
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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