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Wednesday 27 February 2013

Enzymes

An introductoion to enzymes 

Enzymes argon special proteins known as biological particle accelerators that limit the speed of chemical reactions without undergoing any permanent change themselves. 
 
approximately living things social function glucose, a type of sugar, as an skill source. Glucose, like the granulated sugar we use in cooking, is a fairly stable mettle. It can sit in a jar for years and not change. When heat is applied to a sugar, it burns very quickly, releasing a lot of might in the form of light and heat, as well as carbon dioxide and water. Unfortunately, if the speed and temperature of this reaction are not controlled, the ability released is not very useful. 
 
Glucose is the substance that most living things use as an energy source. The cells of living organisms, however, do not publish the energy in glucose by heating it. Instead, the energy is released in a series of biochemical reactions, and the rate of those reactions is controlled by enzymes. 
 
Enzymes are present in all living things. They operate by regulating the speed of the chemical reactions necessary for life. Since the catalyst tinge is unchanged at the end of the reaction, it can be employ over and over again. 

catalysts
[pic]substances that regulate the speed of chemical reactions.

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If the reactions dramatise place within living things, these substances are called biological catalysts. The catalyst molecule is unchanged at the end of the reaction.

Enzymes and Substrates

One of the features of a catalyst, such as an enzyme, is that it is not used up in the chemical reaction it is involved in. In biological systems, the substance that changes in a chemical reaction that occurs in a cell (called a metabolic reaction) is called a substrate. The substrate (which is excessively called the reactant) and the enzyme bind together briefly. The reaction then takes place, and the products of the reaction are released by the enzyme. This is a highly efficient process, because the unchanged enzyme is available...If you pauperism to get a full essay, order it on our website: Ordercustompaper.com



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