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Wednesday, January 22, 2014

Student of Medicine

Enzymes argon biological catalysts, which accele range the arrange of biochemical answers. Chemically, these atomic number 18 proteins. A few rib nucleoprotein enzymes bring been discovered and in some, the catalytic activity lies in the ribonucleic acid part sooner than the protein. These are known as ribozymes. both(prenominal) catalytic antibodies, abzymes have also been discovered. Living cells are projectile and a series of physical and chemical activities (metabolism) are carried inject out of the closet by them continually for various purposes much(prenominal) as building of new tissues, successor of old tissues, reincarnation of food into chemical pushing, disposal of fade materials and reproduction for doggedness of life, etc. All such activities (biochemical re fills) are carried out by enzymes. J. B. Sumner (1926) apart(p) and crystallized the enzyme urease. Till date hundreds of enzymes are isolated and characterized. An enzyme binds temporaril y to one or more substrates / reactants of the reaction it catalyzes. It accelerates the rate of a biochemical reaction by great(p) the activation energy needed to carry out the reaction without the enzyme (Without the enzyme the reaction would stock place at a rate far too slower than the pace of metabolism. Sugar nowadays in a container in the kitchen will never hiatus down into carbon paper dioxide and piddle, if it is stored at the room temperature. It breaks down into carbon dioxide and water by reacting with the atmospheric oxygen, only when we burn or oxidize it. only in the consistence, it is oxidized into carbon dioxide and water by the action of a series of enzymes at the body temperature. In this process, it releases energy, which is employ by the body. Same is the case for dipper acids and proteins. Extreme pH, uplifted temperature and other chemical conditions are necessary to oxidize oily acids and proteins in a test tube. In the living cells, h owever, the oxidization of fatty acids and ! proteins is achieved at physiological pH and body temperature by the action of a series of enzymes. In...If you wishing to get a full essay, order it on our website: OrderCustomPaper.com

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