Organic 2 Review Problem 526

Organic 2 Review Problem 526 - 5 io PRACTICAL ORGANIC...

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5io PRACTICAL ORGANIC CHEMISTRY Nomenclature. The compound on which the enzyme acts is known as the substrate. The name of the enzyme is now usually obtained by adding the termination -ase to the name of the substrate. Thus an enzyme which hydro- Iyses an ester is known as an estemse. Nevertheless the older names of many enzymes still persist owing to their early discovery. In some cases the name of the enzyme indicates the reaction which it catalyses, e.g., oxidase. The isolation of enzymes in a pure state is frequently a matter of great difficulty owing to their instability, their low concentrations in plant and animal tissues, and also to their colloidal nature. The methods employed depend upon the physical and chemical nature of the enzyme in question. In the following experiments, no attempt has been made to isolate enzymes in a high state of purity. The accompanying table gives details of a few of the simpler reactions which enzymes catalyse. Those for which practical directions are given in the following pages are marked with an asterisk.
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This note was uploaded on 09/19/2011 for the course CHM 2211 taught by Professor Castalleano during the Fall '06 term at University of Florida.

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