"Liver as catalase and hydrogen peroxide" Essays and Research Papers

Sort By:
Satisfactory Essays
Good Essays
Better Essays
Powerful Essays
Best Essays
Page 32 of 50 - About 500 Essays
  • Good Essays

    French Questions

    • 900 Words
    • 3 Pages

    Chemical reaction being tested was how fast the hydrogen peroxide could turn into water and oxygen. The theory that was being tested was; Enzymes speed up reactions. The facts that I wanted to determine were matches making the chemical reaction happen quicker or not. Materials: -Test Tubes -Chicken Liver -Sand -Ice -Glass Stirring Rod -Hydrochloric Acid -Hydrogen Peroxide Procedure: 1) Put on safety goggles 2) Get test tubes 3) Put chicken liver in 5 of 6 test tubes‚ an sand in all of the

    Premium Chemical reaction Catalysis

    • 900 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Part one 1. a) When hydrogen peroxide was added to manganese‚ tiny bubbles formed in the solution- intensity of (1). b)The solution did not change in temperature. c) The bubbles stopped forming after about 18 minutes. 2. After we added 2 more mL of hydrogen peroxide‚ the reaction occurred again. Again‚ small bubbles formed; intensity of (1). The solution did not change in temperature. The reaction lasted about 15 minutes. 3. After adding more manganese dioxide‚ the reaction occurred again. This

    Free Chemical reaction Enzyme Catalysis

    • 770 Words
    • 5 Pages
    Good Essays
  • Satisfactory Essays

    Lab Report

    • 299 Words
    • 2 Pages

    Hydrogen peroxide is a substance that contains two hydrogen atoms and two oxygen atoms. Hydrogen peroxide is a weak acid and does not react formally with base substances. Catalase is found in many foods like beef liver‚ carrots‚ wheat sprouts‚ and potatoes‚ and more. Catalase is released when a protein is coming into the stomach a protein catalase goes and transforms the protein into food for human’s internal cells. Bubbles in an experiment where a raw potato is put into hydrogen peroxide

    Premium Chemical reaction Chemistry Catalysis

    • 299 Words
    • 2 Pages
    Satisfactory Essays
  • Better Essays

    Ap Biology Lab Design Lab

    • 1569 Words
    • 7 Pages

    Does increasing or decreasing the ph level of a 3% concentration H2O2 (l) solution affect the amount of oxygen released between 15.0ml of the solution and a 5g sample of liver? The reaction is measured by the difference in mass of a balloon that is used to capture the amount of gas released by the catalase enzyme found in liver reacting with a basified 3% H2O2 (l) and an acidified 3% H2O2 (l) . Chemical reactions occur when two or more molecules interact and the molecules change. Bonds between

    Premium Acid Oxygen Chemistry

    • 1569 Words
    • 7 Pages
    Better Essays
  • Good Essays

    on the reaction rate of an enzyme IB biology Internal Assessment 3/23/12 Research Question: Effect of changes in substrate concentration amount on the reaction rate of an enzyme Introduction: In this experiment‚ the substrate is hydrogen peroxide. The purpose of this investigation is to find out the relationship between the substrate concentration and the rate of reaction. Substrates are molecules that are acted upon by enzymes. For instance‚ amylase‚ an enzyme found in saliva‚ helps

    Premium

    • 1178 Words
    • 5 Pages
    Good Essays
  • Good Essays

    was performed by adding hydrogen peroxide to sand. Due to the fact that the sand was not soluble in the hydrogen peroxide‚ no reaction thus no catalyst were present. Manganese dioxide was also added to the hydrogen peroxide creating a moderately fast reaction thus leading to believe that an enzyme was present to lower the activation energy and speed up the reaction. When the manganese dioxide was added to the hydrogen peroxide it catalyzes and breaks down the hydrogen peroxide and oxygen gas thus creating

    Premium Chemistry Chemical reaction Oxygen

    • 446 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    the optimum temperature will result in a drop in enzyme activity. Materials: 6% hydrogen peroxide Liver suspension 10 test tubes 4 beakers Thermometers Measuring cylinders Test tube pegs Test tube rack Bunsen burner Tripod Gauze mat Ice cubes/refrigerated water Ruler Safety goggles Pipettes Method: 1. Set up equipment as follows: Beaker Temperature (˚C) 6% Hydrogen peroxide (mL) Liver suspension (mL) 1 10 3 2 10 3 3 10 3 4 37 10 3 5 50 10 3

    Free Chemical reaction Enzyme Catalysis

    • 255 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Enzyme Reaction Lab

    • 868 Words
    • 4 Pages

    The effect of time on enzyme reaction. Abstract: In this lab investigation we will observe how the amount of hydrogen peroxide is affected by catalase over time. The enzyme was added to 10 mL’s of hydrogen peroxide and observed over time to determine the relation between time and enzyme activity. The hypothesis stated that as time increased substrate would decrease. Therefore I predicted that at 60 seconds‚ there would be the least amount of H2O2. The enzyme activity mirrored my predictions

    Premium Oxygen Enzyme Hydrogen peroxide

    • 868 Words
    • 4 Pages
    Good Essays
  • Better Essays

    Enzyme Lab Report

    • 1548 Words
    • 7 Pages

    effects of catalase under varying controlled conditions. The scope of this experiment includes Metabolic processes‚ such as cellular respiration‚ and it poisonous byproduct hydrogen peroxide. The methodology includes procedures; multiple variables were tested in specific concentrations; that test the reaction rates of the enzyme catalase over a fixed period of time. The major conclusion was that catalase reacts faster in warm temperatures that are neither freezing nor boiling‚ catalase performs well

    Premium Enzyme Metabolism PH

    • 1548 Words
    • 7 Pages
    Better Essays
  • Satisfactory Essays

    environmental factors help enzymes break down the poisonous chemicals into harmless substance. When we tested the liver with 2ml of hydrogen peroxide for a normal reaction it showed that it was exothermic. We added more hydrogen peroxide and the reaction rate of the liver was 3. We learned that the catalase is reusable because the liver reacted both times when we put in the hydrogen peroxide. We also tested another enzyme reaction for pH. In this test we learned that high pH equal high reaction rate

    Premium Oxygen Enzyme Hydrogen peroxide

    • 276 Words
    • 2 Pages
    Satisfactory Essays
Page 1 29 30 31 32 33 34 35 36 50