Testing For Catalase Activity Rate Essay

2556 Words Oct 6th, 2014 11 Pages
Testing For Catalase Activity Rate
INTRODUCTION
"Enzymes are proteins that speed up the process of a chemical reaction since they are biological catalysts". Enzymes work out by hydrolysis since they break down big substances (like food) into small molecules by breaking the bond between the big initial molecules using a substrate. A substrate is substance that is recognized by and binds to an enzyme in a specific site called the active site “which is a pocket in the enzyme that binds to its substrate”. The enzyme goes under the induced fit theory.”When the substrate interacts with the active site, they both change their shape to fit together. This still means that only particular substrates can fit each enzyme type though.” (Jillian O 'Keeffe, Demand Media, 2014, para. 3).
In addition there is the nonprotein component of enzymes is called the cofactor. They are often metals like iron, copper, zinc and manganese which are essential for the catalytic activity of the enzyme. If the cofactor is organic, then it is called a coenzyme. Coenzymes are relatively small molecules compared to the protein part of the enzyme. Many of the coenzymes are derived from vitamins. The coenzymes make up a part of the active site, since without the coenzyme, the enzyme will not function (Charles E.Ophardt). As any other reaction, there are many factors that have a significant effect on the enzyme and the substrate and the way they react. "Temperature is one environmental factor that can affect…

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