The Effect Of Ph On Enzyme Activity Of Peroxidase

2258 Words Mar 21st, 2016 10 Pages
Effect of pH on Enzyme Activity of Peroxidase

Thomas Stinde
March 15, 2016
Coconino Community College Effect of pH on Enzyme Activity of Peroxidase
For us to understand what the effects pH have on enzyme activity of peroxidase, we must first define what an enzyme is and what is done as well as a peroxidase. According to the Oxford Dictionary of English, an enzyme is, “a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction” (Oxford Dictionary, 2012). Nearly all enzymes are proteins which have large complex molecules whose actions depends on their molecular shape. Some enzymes dictate reactions inside cells and some, such as enzymes which deal with digestion, outside the cell (Oxford Dictionary, 2012). The factors which affect enzyme activity are the environmental conditions. If these conditions are changed, then the enzyme reaction rate is altered. In nature, organisms will make adjustments to their enzyme conditions to create an optimal reaction rate, when needed, or the organisms will contain enzymes which are modified to operate efficiently in extreme environments where they live. Peroxidase is, “an enzyme that catalyses the oxidation of a particular substrate by hydrogen peroxide” (Oxford Dictionary, 2012). Hydrogen peroxide is a byproduct of cellular respiration; therefore, the peroxidase is located in the cytoplasm of the cell.
In our lab, we checked the reaction rate of peroxidase and tried to find the…
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