Preview

The Title

Satisfactory Essays
Open Document
Open Document
345 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
The Title
Conclusion

This lab was helpful in showing us how enzyme catalysis really happens in biology. These series of experiments have proven what the optimal conditions and which are not conducive to the functioning of Peroxidase. Table 7.1 was the trial experiment and was performed to observe the overall activity of the enzyme
Peroxidase. Each of the three tube mixtures were filled with different concentrations of Peroxidase. As seen on the chart the mixture of tube six and seven had the fastest absorption rate because it had a higher concentration of Peroxidase. As was expected, the mixture of tubes two and three proved to have the slowest absorption due to their lower concentration of the Peroxidase enzyme. The data in table 7.4 was a representation of the Peroxidase in a solution, which introduced inhibitors to the enzyme. This solution ceased all function of the enzyme due to the inability of the substrate to bind at the active site of the Peroxidase enzyme. In this case the enzyme showed no absorption which are represented on the tables and graphs Through these different experiments, it is clear as to what conditions are optimal, and which are detrimental to Peroxidase function. The enzyme functioned optimally at a pH of 5 and at temperature of 32C. Enzymes are biological molecules that act as catalysts in the body. They are proteins in nature and therefore contain amino acids. They are specific and only activates when bound with a certain substrate, which are also molecules at the active site. Too high or too low pH and temperatures either denatures or extremely slow down the enzyme activity. This lab has proven that enzyme activity is very particular and in order for them to work at their best, they must be in the proper environment.

Bibliography

Farabee, M.J. Reactions and Enzymes. 6 June 2007. 23 February 2010 < www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookEnzyme.html >

Wellner, Daniel, Royer, G.P., Stellwag, Edmund J.,



Bibliography: Farabee, M.J. Reactions and Enzymes. 6 June 2007. 23 February 2010 &lt; www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookEnzyme.html &gt; Wellner, Daniel, Royer, G.P., Stellwag, Edmund J., “Enzyme”, In AccessScience , McGraw-Hill Companies, 2008. “Enzyme.” Encyclopedia Britannica. Encyclopedia Britannica Online Academic Ed

You May Also Find These Documents Helpful

  • Good Essays

    Bio Lab Essay K101

    • 1732 Words
    • 7 Pages

    The main objective of this lab was to observe the activity of enzyme peroxidase in real time under different experimental conditions. To see how peroxidase reacts with its substrate guaiacol under different conditions. We measure the amount of substances per test tube and then combine all of them together. Each test tube contains a measured amount of any listed substances including H₂O. Each measured amount of peroxidase along with its substrate guaiacol, and other listed substances will show how actively the enzyme oxidizes the substrate. To measure the…

    • 1732 Words
    • 7 Pages
    Good Essays
  • Better Essays

    Background: The four different activities to the enzyme catalyst lab have similar but different backgrounds. Activity A’s background is to investigate the specific reaction of the decomposition of hydrogen peroxide by the enzyme, catalase. Hydrogen Peroxide decomposes slowly into water and oxygen, and the addition of catalase lowers the activation energy of the reaction until it proceeds to a room temperature. The catalase will is unchanged and is usable for to catalyze the reaction of more hydrogen peroxide. The background of activities A, B, and C is to determine the concentration of H2O2 in a solution. To do this, the concentration of an unknown will be used, such as a solution of 0.1 N, which is normal. When titration is done, 5 mL of acid will go in a beaker. When pH indicator paper is added, the paper will turn yellow if it is an acid and green if the solution is neutral. This is the endpoint of titration. In the activities, 2% potassium permanganate will be used to titrate H2O2. When the H2O2 reacts with the potassium…

    • 2040 Words
    • 9 Pages
    Better Essays
  • Satisfactory Essays

    From the data collected in the experiment the hypothesis that was proposed was not supported. The hypothesis was that after the addition of a lower pH, or an increase in temperature the reaction would proceed faster. The results shown from the experiment are in accordance with the principles of enzyme activity. The varying environmental factors tested changes in pH, temperature, and concentrations of the enzyme affected the activity of horseradish peroxidase. The changes in pH decreased the enzyme activity the further it moved away from pH 7, the optimum pH. Changes in the pH first affect the form of the protein, hydrogen bonds between the amino acids of the molecule and progress until the form of the active center of the enzyme.…

    • 181 Words
    • 1 Page
    Satisfactory Essays
  • Powerful Essays

    Peroxidase Lab

    • 2206 Words
    • 9 Pages

    The purpose of this experiment was to inspect the effect of environmental conditions on hydrogen peroxidase. The three conditions tested were the effect of peroxidase concentration on the rate of the experiment, the effect of pH of the rate of peroxidase activity, and the effect of temperature on the rate of peroxidase activity. During the lab, the lab group tested 7 test tubes, including 1 blank, with different amounts of pH 5 buffer, H2O2, Peroxidase, and Guaiacol. After the certain amount of mL per substance was mixed, the absorbance readings for the effect of peroxidase concentration were taken from the spectrophotometer. The results for the effect…

    • 2206 Words
    • 9 Pages
    Powerful Essays
  • Good Essays

    Catalase Lab Report

    • 563 Words
    • 3 Pages

    Enzymes are biological catalysts or assistants that consist of various types of proteins that work to drive the chemical reaction required for a specific action or nutrient. They can either launch a reaction or speed it up. Catalase is a common enzyme found in nearly all living organisms exposed to oxygen. It is a very important enzyme in protecting the cell from oxidative damage by reactive oxygen species (ROS). The catalase used in this experiment will come from five different sources: Spinacia oleracea (Spinach), Brassica oleracea (Broccoli), Solanum tuberosum (Russet Potato), Malus domestica (Apple), and Allium cepa (Onion). The five different catalases from the sources will all be used to catalyze Hydrogen peroxide (H2O2). When hydrogen…

    • 563 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Peroxidase Lab

    • 823 Words
    • 4 Pages

    Table 1.2: Temperature effects on Peroxidase at temperatures of 4, 22, 32, and 48 degrees…

    • 823 Words
    • 4 Pages
    Good Essays
  • Powerful Essays

    Four environmental factors of enzymes were tested in lab. The changing of pH, substrate concentrations, temperature, and an inhibitor (NaCl) and the effects it hade on the enzyme turnip peroxidase. Enzymes are biological catalysts which increase reaction rates by lowering the activation energies of substrates. A substrate is a reactant that interacts with the enzyme. The enzyme and substrate can be viewed as the recently discovered "induced fit model", which suggests enzymes are flexible and dynamic things that change their shape so all these substrates (reactants) can become catalyzed when the activation energy is lowered and the reactions happen a lot faster. Sometimes in cells though it may not need a particular substrate (reactant) so an inhibitor comes into play. Inhibitors are basically regulators that inhibit (disallow) the process of catalysis to take place within a particular substrate. There are two types of inhibitors that occur in such reactions. Competitive inhibiters are remarkably similar to the substrate, so much that it can match interchangeably with the substrate, thus leading to a halt in the production of the intended product. Another variety of inhibitor is the allosteric inhibitors. Allosteric inhibitors change the shape of the enzyme by binding to a different site other the active site, which is the usual site for catalysis. Usually the allosteric inhibitors make contact with the side of the enzyme opposite the active site. In some occasions however an allosteric activator is introduced and functions by connecting to the enzyme in a way that it allows for easy access for a substrate to the active site. Allosteric activators are the opposite of allosteric inhibitors. These regulators (both inhibitive and active in function) help keep the cell in homeostasis by not allowing too much or too little of a needed or not needed product to be produced.. Enzyme activity is also regulated by cofactors which are either metal ions (e.g. Zn2+, Mg2+) or…

    • 2008 Words
    • 6 Pages
    Powerful Essays
  • Good Essays

    Ap Biology Enzyme

    • 425 Words
    • 2 Pages

    1) The purpose of this lab was to determine the rate of enzyme activity under variety of different conditions, such as, different amount of drops of enzymes and different temperature of water. The class measured the pressure in the test tube during the reaction of the substance with, 1.5 ml of H2O2, 1.5ml of H2O and different amounts of enzyme drops, to determine how much oxygen gas is produced during the reaction since the pressure of the test tube will get higher as more oxygen gas is accumulated during the reaction.…

    • 425 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Peroxidase Experiment

    • 1061 Words
    • 5 Pages

    Over a two week period of time in the laboratory, we experimented and tested the reaction rate of a peroxidase enzyme and the factors that affected it, both positively and negatively. The purpose of these experiments was to probe and manipulate the activity of the enzyme peroxidase by varying temperature, pH, the amount of enzyme compared to the substrate and the effect of hydroxylamine. Peroxidase activity is expressed when the potato extract is subjected to stresses such as low temperature (El-hilali et al., 2012). The most eye catching factors that we tested for their impact on enzyme activity involved change in pH, temperature, boiling extract, and the effects of probing the active site with hydroxylamine. In the first part of…

    • 1061 Words
    • 5 Pages
    Good Essays
  • Satisfactory Essays

    Title

    • 309 Words
    • 2 Pages

    1. What is the application ZenMap GUI typically used for? Describe a scenario in which you would use this type of application. / Scanning all domains within the local domain. / If I was a financial accountant, I would use this to see what my employees are accessing and who is doing what on the company internet. I would like to find out who is compromising their privileges and accessing inappropriate sites.…

    • 309 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Enzyme Catalysis Lab

    • 1096 Words
    • 5 Pages

    Enzyme catalysis was observed in order to analyze how changes in temperature, pH, enzyme concentration, and substrate concentration affected an enzyme-catalyzed reaction. This experiment analyzed the rate of enzyme-catalyzed reactions and observed the correlation between catalase activity and products formed. It was found out that the rate of an enzyme-catalyzed reaction starts off rapidly, decreases, and levels off or completely stops, and can be further affected by environmental factors, which play a crucial role in regulating enzymes and metabolic processes.…

    • 1096 Words
    • 5 Pages
    Good Essays
  • Good Essays

    title

    • 379 Words
    • 2 Pages

    The article titled “Working at McDonald’s” by Amitai Etzioni is in short describing how there is no individuality in working at a fast food restaurant. Kids have no initiative and cannot make many individual decisions for themselves. There is no real career training when it comes to working in a fast food restaurant. In saying this, Etzioni is correct. After all he the winner of the 2001 John P. McGovern award in Behavioral Sciences. He states that McDonald’s is bad for kids, not because of the food itself (which is still unhealthy) but because of the fact that they are working for them. Also, the hours children have to work are ridiculous.…

    • 379 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    Title

    • 436 Words
    • 2 Pages

    When I read the short story the prince about S. Leon Kleinman who every two months would call in sick at his job and go to museums and just have a his own little day off. I thought what the heck is this guy doing and how is he getting away with this but threw out the whole of this short story I thought he was very crafty and had a good thing going. Mr. Kleinman worked at an office type job and dreaded working there and thought that all the people were stupid and he hated them so he did it to have his little private time but this little scheme finally game to an end when his boss Mr. Graham found out that he was skipping and called him to his office to see what was the deal and so kleinman came in and they started talking and his boss was asking him questions and kleinman was admiring his painting and Mr. graham saw this and he saw that he had a creative side when he was making statements like to own a prince painting one must be a prince and then the boss Mr. graham offered him a promotion for having such an understanding and love for art. The ending of the story I have to admit I was not expecting that he would get a promotion out of all the things I thought he would maybe get fired and it was kind of ironic because he skipped work and it got him promoted and it spoke on the kind of person he was and all this proved that you can beat the system if you plan it right just like how you saw in this short story and he did all this to do what he loved which was art which…

    • 436 Words
    • 2 Pages
    Satisfactory Essays
  • Better Essays

    Peroxidase Enzyme Lab

    • 805 Words
    • 4 Pages

    The hypothesis for the effect of various pHs on the activity of the peroxidase enzyme was not clear enough and did not predict any results. Based on the experiment, the best pH for the peroxidase enzyme is pH 5.…

    • 805 Words
    • 4 Pages
    Better Essays
  • Satisfactory Essays

    ITS title

    • 205 Words
    • 3 Pages

    COMPUTERIZED CHURCH SERVICES RESERVATION SYSTEM FOR CHRIST THE KING PARISH A Project Proposal Presented to The Faculty of STI COLLEGE ORTIGAS-CAINTA In Partial Fulfillment of the Requirements for the Degree of Bachelor of Science in Information Technology By: Espino, Darrel F. Formentera, Renan M. Siason, Jann Teri M. Cenidoza, Malvin Ralph N. Project Adviser September 2013 ADVISER’S RECOMMENDATION SHEET This Project entitled Computerized Church Services Reservation System for Christ the King Parish…

    • 205 Words
    • 3 Pages
    Satisfactory Essays

Related Topics