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How can the blood coagulation (clotting) process be described?
Blood clotting encompasses a sequence of chemical reactions whose respective products are enzymes that catalyze the following reactions (that is why the clotting reactions are known as cascade reactions). In the plasma thromboplastinogen transforms into thromboplastin, a reaction triggered by tissue and platelet factors liberated after injury of the blood vessel. Thromboplastin then catalyzes along with calcium ions the transformation of prothrombin into thrombin.
Thrombin then catalyzes a reaction that makes fibrin from fibrinogen. Fibrin, as an insoluble substance, precipitates to produce a network that traps red blood cells and platelets forming the blood clot and having the hemorrhage.
Mechanism of Phloem Transport The efficiency and magnitude of translocation of food material are evident from the annual yields of various crops and fruits. Now, the question
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nutrition requirement for protoa
What are sori? The word "sori" is the plural form of "sorus". In ferns, a sorus (pl. sori) is a cluster of sporangia on the edge or underside of a fertile frond. In lots of spe
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Q. How does the intensity of facilitated diffusion differ in relation to the concentration of the moved substance? What is limiting factor? Like simple diffusion facilitated di
Define Factors that Affecting the Calcium Absorption? It is a well known fact that the amount of calcium that we eat need not be the amount of calcium that gets absorbed. The d
Name the four organisms which are currently in danger of extinction because of human activities?
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