The Effect of Starch on the Activity of Amylase with pH Variable Lab Report‚ Fall 2011 East Tennessee State University Department of Biological Sciences By: Shelby Brackett Date Performed: October 10‚ 2011 Lab Instructor: Joseph Kusi Biology 1111‚ Section 018 Abstract Enzymes are very important in chemical reactions. They are used to speed up the reaction taking place. They act by binding to a specific substrate and form an enzyme-substrate complex that may put stress on chemical bonds
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THE RATE OF ENZYME ACTIVITY. To investigate the effect that temperature has on enzyme activity I am going to use the enzyme amylase‚ which is used as a biological catalyst to break down starch‚ which cannot pass through the gut wall due to the size of the molecules‚ into smaller ones. Amylase is a carbohydrase‚ which converts starch to simple sugars in the Salivary Glands. Three features of all enzymes are: They are always proteins. They are specific in their actions and each enzyme controls one
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Experiment 1 Salivary Gland Chromosome Preparation Introduction: Microscopic‚ threadlike part of the cell and a structured DNA which carries hereditary information in the form of genes is a chromosome. Endomitosis is mitosis without nuclear or cellular division. This produces many copies of the same chromosome in a single nucleus (Kim 2004). For this experiment‚ I hypothesize that D. melanogaster undergoes endomitosis meaning without cellular mitotic division. If it undergoes endomitosis‚ then
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INTRODUCTION Enzymes are a protein serving as a catalyst‚ a chemical agent that changes the rate of the reaction without being consumed by the reaction. Enzymes are proteins made up of long chains of amino acids. These form complex shapes. The enzymes are individuals‚ like the different players on a ball team‚ they have different specific structures and jobs. As one ball player may be very tall and one short‚ the specific different shape of the active site on an enzyme is unique and prepares it
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Effect of temperature on enzyme activity In this experiment… Independent variable: Temperature of the amylase Dependent variable: Enzyme activity which is measured by the time for disappearance of starch Controlled variables: Volume of amylase; volume of starch solution; concentration of amylase; concentration of starch solution Prediction of results i) At low temperature‚ the rate of amylase activity is very low. ii) At optimum (=best) temperature‚ the rate of amylase activity is the highest
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Enzyme application in diary MODIFICATION INDUSTRY PRESENTED BY GROUP H S/NO. NAMES MATRIC NUMBER 99. BASSEY C WINIFRED ENG1102141 100. ABIOLA RAYMOND ENG1106478 101. AMAYO .F. 0SARUWENSE ENG1105472 102. MATH-OSAGIE FRANCIS ENG1102177 103. BETTY .O. UKHUEDUAN ENG1102209 104. IJELI .J. CHUKWUMA ENG1102163 105. EMOGHENE EMUDIAGHA ENG1102151 106. 107. OGBOZOR .J. TOCHUKWU ENG1106008 108. BABAFERI .V. EVUARHERE ENG1102140 109. OTOIDE .O. JOSEPH
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Ye Tao BISC220-13155 The Effect of Temperature on the Digestion of Starch by Activity of Enzyme α-Amylase: Observation of Rate of Starch Disappearance through Iodine Test Introduction An enzyme is a type of protein that‚ through its own structure including hydrogen bonds‚ acts like a biological catalyst and is able to accelerate the biochemical reaction rate by lowering the activation energy of the whole process‚ without which cells could hardly practice any physiological functions within human
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INTRODUCTION OF ENZYMES Enzymes are complex proteins that cause a specific chemical change in all parts of the body (David C. Dugdale‚ 2011). When we understand enzymes we understand cells (Marshall Brian‚ 2001). In many organisms most chemical reactions are catalyzed -when a substance speeds up the rate of a chemical reaction- by enzymes. Each enzyme controls a certain function that happens in a cell. Still each one has its own process and rate that it converts molecules. Studying enzymes shows how chemical
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Anatomy of Flowering Plants Tissues A tissue is a group of cells having a common origin and usually performing a common function. Based on cell’s capability to divide‚ tissues are classified into two main groups which are as follows: 1. Meristematic and 2. Permanent tissues. Meristematic Tissues: Cells in the meristematic tissue are capable of dividing. Meristematic tissues are found in those regions which need to grow continuously. For example‚ root tips and stem tips contain meristematic
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ENZYME TIME (posted 9-7) Written by: Len Davis Creatine. Check. Arginine. Check. Protein powder. Check. Enzymes. Che . . . wait‚ what was that last one? You may not think of them as you compile your supplement shopping list‚ but enzyme products can be a smart choice for packing on muscle mass. Traditionally‚ enzymes are known as a digestive aid‚ but studies have shown that they also play an important role in recovery from high-intensity training‚ making them a prime addition to a bodybuilding
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