Investigation of the Change of pH Affecting Enzyme Activity

Introduction:Research Question:The purpose of this experiment is to check over a factor simulateing enzyme activity. Hypothesis:A change in the pH of hydrogen peroxide will have an guess on enzyme activity. Explanation of Hypothesis:Enzymes are catalytic worldwide proteins made by living things that regulate the movement of molecules with metabolous pathways, as well as speed up chemical responses without being changed. They speed up metabolic reactions by with child(p) energy barriers. Catalyst is a chemical factor that changes the crop of a reaction without being consumed by the reaction (IB biological science notes). Enzymes generally function best at a original pH. The optimum pH changes depending on the enzyme in question. The enzyme experimented on in this experiment was the enzyme catalase, which works best at a pH of 7.0 (http://www.worthington-biochem.com/IntroBiochem/effectspH.html). If the pH of the substrate is changed even slightly the enzyme may last d enaturation (IB biology notes). Denatuation is the changing of the structure of an enzyme so that it stack no longer carry out its function, this is usually unchanging (IB biology notes). Variables:Dependent variable:Rate of catalase reaction when dropped into a discharge vial containing 20ml of hydrogen peroxide at common fit in different pH levels. Independent variable:The pH of a 20ml clear vial of hydrogen peroxide. Controlled variable:Temperature exclusively tests were interpreted in the same room, at room temperature. Time solely tests were interpreted on the same day, in the same 90 minute lab session. Light intensity All tests were taken under the same light intensity. Concentration of solutions All 3rd 20ml vials of hydrogen peroxide came from the same batch. Source of biological true used All materials were taken from the same batch. Total great deal of reaction mixtureAll liquids were poured from the same 10ml graduated cylinder. Materials:Notebook or ha ve paperPen or pencil3 clear vials2 20ml hos! pital plastic cup100% Catalase solution, If you want to relinquish a full essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper