Preview

Effect of Concentration on Enzyme Activity Lab Report

Good Essays
Open Document
Open Document
619 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Effect of Concentration on Enzyme Activity Lab Report
Lab Report
(Effect of concentration on enzyme activity)
Biology
Noor Alawadhi
11- KC

Introduction:
An Enzyme is a protein, which is capable of starting a chemical reaction, which involves the formation or breakage of chemical bonds. A substrate is the surface or material on or from which an organism lives, grows, or obtains its nourishment. In this case it is hydrogen peroxide. This lab report will be explaining the experiment held to understand the effects of the changes in the amount of substrate on the enzyme’s reaction.

Research question:
What does the changes in the amount of substrate on an enzyme’s reaction effect on?

Hypothesis:
I forecast that the more concentrated the hydrogen peroxide is the higher the volume of the foam is and the less concentrated the hydrogen peroxide is the lower the volume of the foam will become.

Variables:
Dependent: Volume of foam
Independent: Hydrogen Peroxide (Substrate) and the Concentrations are (6%, 4%, 2%, 1%, 0.5%) ml.
Controlled:
* Time (30 s). * Volume of Hydrogen Peroxide. * Constant volume of detergent. * Size of liver cubes.

Materials: * 100cm3 measuring cylinder. * 5 or 10cm3 measuring cylinder. * 2 teat pipettes. * Forceps. * Stop watch. * Sharp knife or razor blade. * Solution of hydrogen peroxide (6%, 4%, 2%, 1%, and 0.5%). * 10cm3 detergent. * Fresh liver. * 100cm3 of distilled water.

Procedure: 1. Cut 6 cubes of liver approximately 1cm x 1cm x 1cm 2. Use the small measuring cylinder and teat pipette to measure 4 cm3 of 6% hydrogen peroxide with two drops of detergent into a 100cm3 measuring cylinder and swirl to mix
Warning: hydrogen peroxide is corrosive, avoid contact with the skin and the eyes and wear safety glasses. Wash off any spills with plenty of water. 3. Using the forceps take one cube of liver and place it in the measuring cylinder. After 30 seconds, record the volume the foam reaches in the

You May Also Find These Documents Helpful

  • Good Essays

    6.03 Titration Lab

    • 573 Words
    • 3 Pages

    4.) Fill the buret with NaOH. Record the initial volume of the buret in your data table.…

    • 573 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    8. While the mixture is standing, complete Part II of the lab. Be sure to record your observations for Part I after 20 minutes.…

    • 890 Words
    • 5 Pages
    Satisfactory Essays
  • Good Essays

    Formal Lab Report 2 Final

    • 1572 Words
    • 7 Pages

    2. Using forceps and scissors cut a small piece of liver and add it to the test tube. Push it into the hydrogen peroxide with a stirring rod. Observe the bubbles.…

    • 1572 Words
    • 7 Pages
    Good Essays
  • Good Essays

    Easy Peasy

    • 401 Words
    • 2 Pages

    6. Draw a graph to show how the rate of reaction changes with the change in substrate concentration.…

    • 401 Words
    • 2 Pages
    Good Essays
  • Good Essays

    The prediction for the effects of temperature on the enzyme activity was that the reaction’s rate would increase as the temperature increased, until they go over the optimum temperature where the enzymes denature and the reaction’s rate quickly drops to zero. At 5 degree C the rate is 0.00059mole PNP/min. This then increases to 0.01031mmoles PNP/min at a temperature of 50 degree C. The rate then drops drastically to -0.00215moles PNP/min. This point is where the enzymes have been denatured and have no activity, shown as the last point on the fig 8 and 9, do not fit on the graph. The optimum temperature was about 47 degree C. The core body temperature is only about 37 degree C and thus these enzymes are operating below their optimum temperature.…

    • 521 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    (Click on the Save a Copy button on the panel above to save your report)…

    • 1209 Words
    • 5 Pages
    Powerful Essays
  • Good Essays

    |Hot Water |Hot water splashing or spilling on |Safety glasses and aprons were worn |…

    • 929 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Enzyme Lab

    • 1242 Words
    • 6 Pages

    4. Obtain 40 mL of 3% hydrogen peroxide, place solution in a beaker and label as “ 3 % Hydrogen Peroxide.”50…

    • 1242 Words
    • 6 Pages
    Good Essays
  • Good Essays

    Enzyme Lab Report

    • 1528 Words
    • 5 Pages

    Place 2 ml of the 3% hydrogen peroxide solution into a clean test tube. Using forceps and scissors,…

    • 1528 Words
    • 5 Pages
    Good Essays
  • Better Essays

    Hydrogen Peroxide is a widely used chemical that has many different uses, many different safety hazards, and different dangerous hazards. “Hydrogen…

    • 1508 Words
    • 7 Pages
    Better Essays
  • Satisfactory Essays

    (Click on the Save a Copy button on the panel above to save your report)…

    • 688 Words
    • 9 Pages
    Satisfactory Essays
  • Good Essays

    Foam Lab

    • 640 Words
    • 3 Pages

    Materials: The things need for this lab are seven foam blocks, a ruler, a scale, pencil,calculator and paper Procedure: There is a step-by-step procedure for this lab: You must first use scale to measure the mass for each foam block, and make sure to include a uncertainty of plus or minus .05g for the mass. The second step is to find the volume of each block.…

    • 640 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    Chicken Livers Lab Report

    • 701 Words
    • 3 Pages

    Title I decided to do my experiment on chicken livers. It was interesting to do this experiment on chicken livers. The results were that since there is DNA I needed to stir the ingredients slowly and do the experiment as quickly as I can due to the fact that there are enzyme in the cells. I found out that liquid detergent is an active agent which the detergent destroy the cell membrane and also the protein.…

    • 701 Words
    • 3 Pages
    Satisfactory Essays
  • Satisfactory Essays

    The analysis of aspirin

    • 706 Words
    • 3 Pages

    5. The burette is filled with 0.100M NaOH. Make sure there are no bubbles apparent in the burette. Record the initial volume of the base and the initial volume of the aspirin on the data table.…

    • 706 Words
    • 3 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Explanation #3 states that the substance in the potato that interacts with hydrogen peroxide is altered when the two substances are mixed; the oxygen gas, as a result, comes from both the hydrogen peroxide and the substance in the potato. When we dropped the potato into the hydrogen peroxide, we noticed that it took a couple of seconds for the oxygen gas to start appearing. The white bubbles formed once the potato was dropped in and it stopped bubbling quickly after. We also noticed that it didn't matter how much hydrogen peroxide was added or what size the potato was, the oxygen bubbles always formed. Since this reaction would not have happened if the potato had not been added to the hydrogen peroxide, both substances had to play a role in the reaction. This evidence shows how hydrogen peroxide works. When you have a cut, hydrogen peroxide helps heal the wound with a chemical reaction. Chemicals in the stomach also help with breaking down foods. The decomposition formula for the hydrogen peroxide is H2O2H2O+O2. The hydrogen peroxide is the substrate of the reaction.…

    • 269 Words
    • 1 Page
    Satisfactory Essays