Preview

Enzyme Lab Report

Good Essays
Open Document
Open Document
1186 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Enzyme Lab Report
Polypeptides, better known as proteins, carry out nearly all of a cell's functions. A protein is made up of at least one or more amino acid polymers. The necessity of proteins for life is unequivocal, not only do they help to form the structures of cells but they act as enzymes in reactions of the body1.

Enzymes are biological catalysts that lower the amount of activation energy needed in carrying out biochemical reactions1. Enzymes are responsible for almost every reaction that occurs in a cell and is named according to the substrate they specifically affect. An enzyme works best under optimal conditions pertaining to temperature, pH level and salt concentration1. In unfavorable conditions enzymes will become denatured and ineffective. In human beings enzymes are most effective in 37 C temperatures, at a pH level of 7.2 (in the stomach a pH of 2 and in the small intestine a pH of 8.5)3 and with a daily
…show more content…
When liver was added to hydrogen peroxide is caused and instantaneous reaction time. This is due to the enzyme catalase.

If the enzyme catalase was not present in the human body, hydrogen peroxide, which is highly toxic to cells, would attack the unsaturated fatty acid compounds in the membrane of lipids.2 This would cause substantial damage to the membrane structure. Since catalase utilizes hydrogen peroxide as both an electron acceptor and donor it oxidizes hydrogen peroxide isolating oxygen while it simultaneously reduces the second hydrogen peroxide molecule to water2. The decomposition of hydrogen peroxide by the enzyme catalase is represented in the following balanced equation:2H2O2(l) 2H2O(l) + O2(g).

Dead cells may still be studied to learn more about enzyme function because as seen in the liver despite the fact that the cells are dead, the enzymes remain intact and active for several weeks, as long as the tissue is kept

You May Also Find These Documents Helpful

  • Better Essays

    • An enzyme is a specific organic catalyst (substance that speeds up reaction without being used up in the experiment) in which it binds on to a specific substrate (reactant) at the active site and lowers the activation energy required to perform that reaction. Enzymes are important biologically because, for example, the human body performs certain reactions that keep us alive and most of them react at 37 degrees Celsius (body temperature. In each of these reactions, there is an enzyme that catalyzes these reactions to lower the amount of energy needed to perform this reaction. If enzymes didn’t exist then body temperature wouldn’t be enough to perform any of these reactions properly. Enzymes have certain conditions in which it will work in. For instance, most enzymes react at certain temperatures (varies in each enzyme), most enzymes react from a pH of 6- 8, and react faster or slower according to the amount of substrate present. Altering temperature, pH level, and concentrations of enzyme and substrates may cause absolute no change to the activation energy in which the enzyme would have been denatured. In addition to these environmental factors, other molecules may react with an enzyme. These may have great to no effect on the enzymes. Those…

    • 1132 Words
    • 5 Pages
    Better Essays
  • Better Essays

    GRT1 Task 4

    • 964 Words
    • 4 Pages

    Enzymes are proteins that act as catalysts during a biochemical process. Catalysts are non-changing enzymes that can increase or decrease activation energy to accelerate or slow down a biochemical reaction without using additional energy.…

    • 964 Words
    • 4 Pages
    Better Essays
  • Good Essays

    **The crucial function of enzymes is to speed up biochemical reactions at temperatures that are compatible with the normal functioning of the cell.…

    • 1649 Words
    • 7 Pages
    Good Essays
  • Good Essays

    Enzyme Lab Report

    • 1060 Words
    • 5 Pages

    Summary: What the class learn today about the jobs of enzymes? What questions does the class still…

    • 1060 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Different sequence of amino acid produces different structure of protein, which determines the property of protein, thus each kind of enzymes has its unique active site, which only fits to complementary – shaped substrate to form product. Because of the feature of active site, each kind of enzymes therefore is specific for a particular reaction. However, there are several factors affect the rate of enzyme reactions, they are temperature, pH, concentration of enzyme, concentration of substrate and inhibitors. High temperature and pH affects the structure of enzyme, irreversible denaturation occurs, the shape of active site is changed, enzymes therefore no longer function. The effect of the other factors is slowing down the rate of enzyme reactions, it depends on the concentration of those factors. Since enzymes are catalyst of chemical reactions, they are responsible to the activities of cells, and they determine the function of tissues and organs as well.…

    • 625 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Enzyme Lab

    • 1242 Words
    • 6 Pages

    Title: The Effect of Adjusted Concentration of Hydrogen Peroxide on the change in reaction rate of liver catalase.…

    • 1242 Words
    • 6 Pages
    Good Essays
  • Good Essays

    Catalase Experiment

    • 1088 Words
    • 5 Pages

    Catalysts are substances that increase chemical reactions while using less energy. They also remain unchanged after use, which enables it to be used repeatedly. Cells have special catalysts called enzymes, which are specialized proteins that help accelerate chemical cell reactions. (Evert, RF & Eichhorn, SE 2013). Enzymes also control plant metabolic processes such as respiration (Evert RF, Eichhorn SE & Perry JB 2013). This experiment focuses on the enzyme catalase. Catalase breaks down hydrogen peroxide into water and oxygen. Hydrogen peroxide is a waste product of cell metabolism that can be toxic to the cell (Evert RF, Eichhorn SE & Perry JB 2013).…

    • 1088 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Enzyme Lab Write Up

    • 724 Words
    • 3 Pages

    Enzymes are proteins that are involved in all the chemical processes in living things. As they are made of proteins they are affected by pH and temperature. Enzymes are catalysts; they speed up chemical reactions without being changed themselves. Digestive enzymes speed up the breakdown of large food molecules into smaller ones so that the blood can absorb them. Enzymes turn a large starch molecule into thousands of tiny glucose molecules. Enzymes end in 'ase'. There are thousands of enzymes in our body but each enzyme is only specialised to do one thing, for example carbohydraise enzymes digest carbohydrates, protease enzymes digest protein.…

    • 724 Words
    • 3 Pages
    Good Essays
  • Better Essays

    In this lab we utilized Catechol Oxidase as our enzyme, and Catechol as our substrate. When exposed to oxygen catechol gradually changes to benzoquinone, catechol oxidase speeds up this reaction. We tested the effects of temperature, pH, and inhibitors on this enzyme system. This was all accurately timed and measured to ensure proper results. My hypothesis is that the reaction rates will differ substantially in different temperatures and pH concentrations. I predict the warmer the surrounds in which the reaction is in, the faster the reaction will go. I also predict that a strong acidic or basic solution will slow down or prevent the reaction.…

    • 1105 Words
    • 5 Pages
    Better Essays
  • Good Essays

    Enzyme Lab Report

    • 1528 Words
    • 5 Pages

    speeds the breakdown of hydrogen peroxide, a toxic chemical produced by cells in the body, into water and…

    • 1528 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Lab Report Enzyme Lab

    • 743 Words
    • 3 Pages

    Introduction: The Enzyme Lab is to conduct investigations to determine the most favorable conditions for the most efficient enzyme activity. Variables to be used testing include temperature, pH values and surface area. Enzymes are proteins that speed up the rate of chemical reactions, which would otherwise progress more slowly.(Background Information; pg. 1) pH is a measurement of the acidity or alkalinity (base) of a solution. When the liver got mixed with H2O2 , the first time the chemical reaction was fast, the second time the reaction was slow and the last try was very fast. Temperature is the degree or intensity of heat present in a substance or object. When the temperature of the liver changed from freezing to very hot to room…

    • 743 Words
    • 3 Pages
    Good Essays
  • Better Essays

    Enzyme Lab Report

    • 955 Words
    • 4 Pages

    Enzyme B produced the most maltose at a high temperature (100 ºC) and an acidic pH.…

    • 955 Words
    • 4 Pages
    Better Essays
  • Good Essays

    Science Experimeny

    • 1617 Words
    • 7 Pages

    Living tissues produce the enzyme catalase, which is able to break down hydrogen peroxide into oxygen gas and water. The reaction is shown below:…

    • 1617 Words
    • 7 Pages
    Good Essays
  • Good Essays

    Enzyme Lab Report

    • 3255 Words
    • 14 Pages

    The cellular activity of all organisms is controlled through the use of enzymes. An enzyme is a special type of biological molecule, usually a protein, which speeds up a chemical reaction; most are soluble in water or a dilute salt solution. There are about 4000 different enzymes in a typical living cell. If even one of these enzymes is missing or defective, the results can disastrous. Enzymes have a unique three dimensional shape, and this shape determines which reaction it catalyzes. Another term that is used to describe an enzyme is catalyst. A catalyst is a substance that speeds up a reaction,…

    • 3255 Words
    • 14 Pages
    Good Essays
  • Satisfactory Essays

    Catalase is an enzyme found in food such as potato and liver. It is used for removing Hydrogen Peroxide from the cells. Hydrogen Peroxide is the poisonous by-product of metabolism. Catalase speeds up the decomposition of Hydrogen Peroxide into water and oxygen as shown in the equations below.…

    • 1103 Words
    • 5 Pages
    Satisfactory Essays