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This 16 page paper provides an overview of enzymes. The term "enzyme" refers to any of a number of substances that act as catalysts in biochemical reactions. In particular, enzymes work within a biological structure, as in an animal, human or plant, in order to determine changes that would not occur in the same manner without the presence of the enzyme. Bibliography lists 6 sources.
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16 pages (~225 words per page)
File: MH11_MHEnzym.rtf
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in order to determine changes that would not occur in the same manner without the presence of the enzyme. For example, in a laboratory setting, scientists can significantly alter
the composition of fats through the introduction of heat (Enzymes, 2002). By introducing heat and boiling fats, scientists can hydrolyze these substances. In the human body, though, the
presence of enzymes called lipases allows for the same change to occur, the hydrolization of fats, without the required heat to produce a boiling effect. The same outcome occurs,
but enzymes allow this to occur more quickly and without the presence of a level of heat that would be damaging to other human tissues. Studies of enzymes have resulted
in the assertion that enzymes as catalysts essentially increase the rate of reaction, but they are not an instrumental component of the reaction, neither being consumed or produced through the
reaction (Enzymes, 2002). As a result, "this means that any catalyst which catalyzes a reaction in one direction (e.g., esterification) also catalyzes the reverse (e.g., ester hydrolysis) reaction. To
say these things another way, catalysts do not change the energy balance between reactants and products; catalysts do lower the energy barrier between reactants and products. These statements are true
of enzymes as well as other types of catalysts" (Enzymes, 2002).
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