ENZYME STRUCTURE AND FUNCTIONS: Enzymes are biological catalysts. They increase the rate of reactions by a factor of between 106 to 1012 times‚ allowing the chemical reactions that make life possible to take place at normal temperatures Definition of enzyme: A protein with catalytic properties due to its power of specific activation is defined as an enzyme. STRUCTURE Enzymes are proteins their function depends on its complexity. The reaction takes place in a small part of the enzyme
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Just as in science‚ a catalyst speeds up the rate of the chemical reaction; in literature‚ a catalyst is a person‚ idea or event that initiates and develops the conflict of the story. In "A View from the Bridge" and "The Glass Menagerie"‚ the catalysts used are introduced at different points in the plays and play different roles. In " A View from the Bridge"‚ Rodolpho‚ the catalyst‚ is introduced in the exposition‚ and plays a major role in the play. He initiates the conflict by being attracted
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Enzymes lower the activation energy of chemical reactions but they themselves are not consumed or altered when doing so. These catalysts work best at optimum temperatures and pH’s. The temperature and pH at which the reaction occurs the quickest is the ideal condition for the enzymatic reaction. Alpha amylase converts starch into glucose and when starch is combined with I2KI indicator a dark purple solution forms. As the enzyme breaks down the starch the absorbency will decrease. The absorbency
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The hypothesis proposed that if a small amount of salt was added to the reaction‚ then it cause the rate of the reaction to speed up‚ but if too much salt was added‚ then it will instead decrease the rate of the reaction. The data revealed that no additional amount of salt was the reaction that had the highest rate. As shown previously in the data table‚ the first trial’s average reaction rate of 4.5 mL/min was higher than the other two reaction rates where salt was added for trial 2 and trial3‚
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Muscle contractions and stimulations play a very integral part in the functioning of an organism and muscles are especially function for force production and motion all this is highly influenced by specific temperatures‚ electrical impulses‚ proteins and enzymes and other factors that occur whether on the inside or the external environment of an organism (Amitrano & Tortora‚ 2012). Proteins as defined by Cheeke 2010‚ are molecules that are made up of amino acids and are responsible for almost all
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An electrocardiogram (ECG) records the electrical activity of the heart and is affected by the magnitude and direction of the current flow. It works by placing electrodes on the skin as the body is a good conductor of electricity. There are leads attached to an amplifier within the machine‚ which must be clipped to the edge of the electrodes. The ECG is recorded from 12 different electrode sites. The amplitude and the shape of the signals depend upon the position of the electrodes (Brown‚ 1999) (Conover
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For this assignment you will research one of the equilibrium systems below‚ or one approved by your instructor‚ and prepare a presentation describing the system. The Haber Process (or Haber-Bosch Process) The Contact Process The Ostwald Process Begin by finding at least five different reliable sources of information about your chosen process. You may use textbooks‚ the Internet‚ or library books. These resources should be cited within your presentation and should be listed in
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The effect of increasing substrate concentration on rate of an enzyme reaction. Enzymes are biological catalysts that lower a reactions activation energy making possible many of the reactions needed for life to exist. Enzymes have a high specificity which have been explained by many theories such as Fischer’s lock and key. Currently the most widely accepted theory is the induced fit hypothesis proposed by Koshland in 1958. This hypothesis solves some of the problems with the Lock and key theory
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Abstract The aim of this experiment was to investigate the effect of temperature on the enzyme catalase. The original research question was exploring the effect temperature would have on a yeast catalase reacting with hydrogen peroxide (H2O2). To address the latter question a series of experiments were conducted. The various temperatures experimented with were as follows: 22 degrees Celsius (room temperature)‚ 0 degrees Celsius (freezing)‚ 100 degrees Celsius (boiling)‚ and 37 degrees Celsius.
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Enzyme Lab Experiments Problem: How can we demonstrate how enzymes work? What happens if we alter the environment of an enzyme? Materials: G;lucose Test Strips Test Tubes Pipettes Raw Hamburg Lettuce Potato Raw Liver Chalk Beakers Dairy Lactose Tablet Water Sugar Solo Cups Hot Plate Knife Gloves Skim Milk Glow Sticks Peroxide Hypothesis: 1. If we change the environment via temperature the glow stick will Its intensity will change 2. If hydrogen peroxide is added to a certain food liver
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