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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.
What is nervous system
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What is Cardiac Transplantation ? Cardiac Transplantation : The first successful clinical heart transplant was done by Christian Bmnard at Cape Town in South Africa in 196
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In some types of cells, the cell membrane present differentiations that are essential for the specific functions of the cells. The major differentiations are the microvilli and the
I need an idea for a Biology experiment
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