Topic > The effect of catalase on hydrogen peroxide - 1249

The effect of catalase on hydrogen peroxide Planning Catalase is an enzyme present in the blood and in most living cells, its task is to accelerate the decomposition of hydrogen peroxide in water and oxygen.2H2O2 + Catalase ¾¾¾¾¾¾¾® 2H2O + O2The chemical compound hydrogen peroxide (H2O2) is a viscous liquid that has strong oxidizing properties and is also used as a powerful bleaching agent that has found use as a disinfectant and (in strong concentrations) as an oxidant. Hydrogen peroxide tends to decompose exothermically into water and oxygen gas. The rate of decomposition depends on the temperature and concentration of the peroxide, as well as the presence of impurities and stabilizers. Hydrogen peroxide is made up of fats and amino acids. Fats and amino acids are broken down by oxidation within membrane-bound organelles called peroxisomes, which are present in plant and animal cells. Liver cells contain more peroxisomes than other cells, because one of the roles of the liver is the metabolism of fats and amino acids. Catalase acts, like many other enzymes, only under specific conditions. Such as:* pH* Temperature* Enzyme Concentration* Substrate Concentration My aim for this experiment is to investigate what percentage of catalase should be used for the main investigation where I will investigate the reaction rate when the percentage of catalase I will use from this experiment is added to various concentrations of hydrogen peroxide. I predict that the greater the percentage of catalase added to the hydrogen peroxide solution, the greater... half the paper... the percentage of catalase/hydrogen peroxide will not be eliminated.* When recording the time it is not possible press the start button in time.* You may not accurately record the amount of gas produced every 10 seconds.* You may not read the volume of gas produced correctly. In conclusion, I have found that the speed of the reaction increases when the amount of solution is increased or the percentage of catalase or hydrogen peroxide is increased. I found that catalase broke down hydrogen peroxide into water and oxygen as the gas was produced and the solution of hydrogen peroxide and catalase remained liquid, but to be sure that the products produced by the experiments were oxygen and water we would have had to carry out a further experiment such as testing oxygen on lighting a glowing stick'.