• Biology
    Lab Report 1 Principles of Biology 1(BIOL 100) Fall 2001 Gerard Chretien Living cells perform a multitude of chemical reactions very rapidly because of the participation of enzymes. Enzymes are biological catalysts, compounds that speed up a chemical reaction without being used up...
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  • enzyme lab
    Lab 6.C Hypothesis: If enzyme activity is affected by the pH of a solution, then the enzymes will experience the greatest activity at a pH of 6. Variables: Independent Variables Dependent Variable Controls Four different pH values (10, 7, 6, and 3) Change in color of the solution The amount...
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  • Biology 1010 Enzyme Lab Report
    oxidation of phenolic compound of catechol. Enzymes are used to speed up chemical reactions in cells (Danyk, H, 2013). The enzyme catechol oxidase is used to speed up the production of benzoquinone which is to help in infection prevention. In this study catechol oxidase was combined with potato juice...
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  • Preparation and Assay of Phenolase and Peroxidase from Sweet and Irish Potato
    Title of Lab: Preparation and Assay of Phenolase and Peroxidase from Sweet and Irish Potato Hypothesis: Polyphenol Oxidase enzyme activity can be detected by change in colour of solution, Inhibitors prevent the reaction of the enzymes with substrates, the enzyme is relatively specific. Aim: To design...
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  • The Effect of Substrate Concentration, Enzyme Concentration, Ph and Temperature on Enzyme Activity”
    Title: “The Effect of Substrate Concentration, Enzyme Concentration, pH and Temperature on Enzyme Activity” Abstract: In the following experiments we will measure precise amounts of potato extract as well as Phenylthiourea, combined with or without deionized water and in some instances change the...
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  • Enzymes Are Important
    LAB EXERCISE: Enzymes I Catechol Oxidase Laboratory Objectives After completing this lab topic, you should be able to: 1. Define enzyme and describe the activity of enzymes in cells. 2. Differentiate competitive and noncompetitive inhibition. 3. Discuss the effects of varying environmental conditions...
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  • LAB REPORT
    become fully complementary to each other. Excessive temperatures alter enzymes structure destroying their ability to function. When an enzyme structure is changed sufficiently to destroy its function the enzyme is denatured. Effect of pH on enzyme activity. Hypothesis The pH of a substrate and an enzyme...
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  • Enzymes Lab
    of catalysis. The enzyme being studied, catechol oxidase, is a common and well known enzyme that helps in the process of bruising and browning in fruits and vegetables (Danyk, 2013/2014). It is known as catechol oxidase because the phenolic compound, catechol, is being oxidized into quinones, in this...
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  • Enzymes…the Essential Biocatalysts of Organisms
    describe this process. The word enzyme was used later to refer to nonliving substances such as pepsin, and the word ferment used to refer to chemical activity produced by living organisms.’ (Bridges III 2008) These molecules act as biocatalysists, this means that they accelerate the chemical process that...
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  • Enzymes
    The main reason of the following experiments was to determine the effects that changes in the pH, enzyme concentration and changes enzyme. The very first experiment was to establish if there are optimum pH levels for the enzyme activity. This was determined by linking a control group with the actual performed...
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  • Bi112 Biology Paper
    The Effect of pH on the Production of Benzoquinone in Solanum tubersum Catalyzed with Catechol Dani Petron Melanie Bilbo Michelle Fox Ivy Victoriano Abstract Both consumers and producers of Solanum tubersum can benefit from determining what pH environment offers the lowest production of benzoquinone...
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  • Formal Lab Report on Enzymes
    Lab #5-Enzymes NAME DATE LAB PERIOD Introduction Enzymes are proteins, though highly complex and diverse, they serve one basic function; to work as an organic catalyst. A catalyst, as defined by Merriam-Webster dictionary, is a substance that enables a chemical reaction to proceed at a usually...
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  • Factors That Affect Enzyme Reaction Rate
    Lab Report Factors That Affect Enzymes Reaction Rate Name of lab: Effects of temperature, pH, Enzyme Concentration, and Substrate Concentration on Enzymatic Activity Introduction: Enzymes are the most important types of proteins, they act as catalysis (speed up chemical reactions). If enzymes...
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  • Temperature Effects on Enzymes
    example, the enzyme we used in lab, cathechol oxidase, works only on the substrate catechol. Beacuse the enzymes are so specific they will only affect one direction of the reaction. Each enzyme works within quite a small pH range. There is a pH at which its activity is greatest (the optimal pH). This...
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  • Inside the cell
    why would the information you seek be important/valuable to others? (either in terms of using catechol oxidase as a model to study enzyme function or considering the specific activity of catechol oxidase) 3) State your hypothesis (an educated prediction): Materials and Methods 1)...
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  • Effect of an Increasing Substrate Concentration on Enzyme Activity Rate
    ID:0720052 Effect of an Increasing Substrate Concentration on Enzyme Activity Rate Abstract The reaction rate of an enzyme can be affected by many factors, and the purpose of this experiment was to find out how an increasing substrate concentration influences the rate of an enzyme activity; we obtained...
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  • Paper
    affected by different factors. In this laboratory we observed the activity of the enzyme, catechol oxidase, an enzyme in which catalyzes the conversion of the chemical catechol to a brown-pigmented substance, benzoquinone. Catechol oxidase is found in the cells of many organisms. You have probably observed...
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  • Enzyme Kinetics
    thereby impeding the forward reaction. In this experiment, o-diphenol oxidase, an enzyme that causes the browning in fruits, was extracted from banana and reaction rate of this was established with various concentrations of catechol, the substrate, using the Michaelis-Menten, Lineweaver-Burk, Hanes-Woolf...
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  • Lab Report About Lab
    Abstract In food industry such as the production of cheese, bacteria takes a significant role on the wide variety of cheese. Lactic acid bacteria(LAB), a bacteria that can be found in the production of cheese, its stress gene was investigated in the experiment by using various biochemical and genetic...
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  • Enzyme lab
    The Effects of pH, Temperature, Enzyme, and Substrate Concentrations on Benzoquinone Production BIOL 2051 June 10th 2013 Introduction Enzymes are the ultimate catalysts of living things. Enzymes are made of proteins which are structured and directed by...
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