EEI Daniel Blinks YR. 11Context – Catalase is an enzyme that catalyzes the reduction of hydrogen peroxide into H2O and O2. Catalase is a common enzyme that can be found in almost all living organisms such as potatoes. It is found specifically in cells exposed to oxygen and can be found in a plant or animal cell. [1]The effect of heat above 400 on catalase will cause them to denature and O2 production will slowly decrease. However, when the catalase is too cold, the rate of O2 production decreases because the particles cannot move very fast and do not collide with each other. [2]hydrogen peroxide (H2O2), a colorless liquid usually produced as aqueous solutions of various concentrations, used primarily for bleaching cotton and other fabrics and wood pulp, in the production of other chemicals, such as rocket propellant, and for cosmetics and medicinal purposes. Solutions containing more than about 8% hydrogen peroxide are corrosive to the skin. [3]Hydrogen peroxide decomposes into oxygen and water. [3]Hydrogen peroxide does not need the enzymes in catalase to separate into oxygen and water. Catalase is only used to increase the rate of the reaction. Rationale – Record the results of the oxygen created by the decomposition of hydrogen peroxide with catalase that is heated, cooled, or left at room temperature. Hypothesis – Cold Potato: When the potato is cooled to 2-5 degrees oxygen production will be slowed as the catalase in the potato will become less active due to the molecules obtaining a lower kinetic temperature from the heat. Hot Potato: When the potato is heated but not heated above 35 degrees (due to the high temperature...... half of the document ......0k/docs/Catalase.htmlShort summary: this website explains what catalases are and where they can be found.[2] Book Biosphere The Kingdom Of Life Authors: Robert A. Wallace, Jack L.King, Gerald P.Sanders – 1998 Page 85 – The hotter catalase gets, the more denatured it becomes they tell the reader that when a catalase is heated above 400. it will begin to die and become unusable.[3] Website - http://www.britannica.com/EBchecked/topic/278760/hydrogen-peroxide Quick summary: this article produced by the Encyclopedia Britannica has helped to better understand what hydrogen peroxide is, what it is and what it is used for. Reliability: the website is reliable but may still contain incorrect information as it is written by different people (before publishing someone's update the website is verified to be true or false)