The Effects of Varying pH on Enzyme Activity A lab was conducted to test different pH balances on an enzyme. Introduction: Enzymes are protein catalysts that speed up a chemical reaction without being consumed in the process. Enzymes are three-dimensional structures that consist of one or more polypeptide chains. The polypeptide chains form an active site (where a substrate will fit into). Enzyme molecules are folded into a very specific shape held together by the different forces of attraction
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September 10th‚ 2013 EXPERIMENT 1 LEARNING BASIC OPERATIONS: THE EFFECT OF PH ON A FOOD PRESERVATIVE Purpose: The purpose of this experiment was to investigate a competitor’s claim that the food preservative‚ sodium benzoate (C6H5COONa)‚ made by Fresh Foods International (FFI)‚ changed into a new substance in stomach acid. Stomach acid has a pH between 1 and 3 due to the hydrochloric acid content. Based on the net equation given in the book as well as the solubility of the product our hypothesis
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produced. Nevertheless‚ authors‚ editors‚ and publisher do not warrant the information contained in these books‚ including this book‚ to be free of errors. Readers are advised to keep in mind that statements‚ data‚ illustrations‚ procedural details or other items may inadvertently be inaccurate. Library of Congress Card No.: applied for British Library Cataloguing-inPublication Data A catalogue record for this book is available from the British Library. Bibliographic information published by Die Deutsche
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QUALITIES OF GOOD WATER by Dr. Robert O. Young There are many measurements of water‚ but the most important for determining the best water to drink are‚ the pH‚ oxidative reduction potential—or energy potential/activity—molecular structure‚ and purity. Science has helped us to determine that the best measurements for our drinking water are the pH and purity‚ but little understood is the importance of the molecular structure of water. Assuming that most waters that humans are drinking are purified
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Review Guide for PH 150E Red= Source of Info Blue= Objective Black= answer Side note from review... Diff between social networks and social support: social networks--> social interactions social support--> derived resources from social networks. (ex of resources: be able to borrow money in case of emergency‚ emergency child care... basically someone to rely on in case of need) Politics of placemaking: zoning‚ redlining‚ why does development occur in some places vs others.. Need to build
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Effects of Different pH on Enzyme Activity How does the different pH buffers affect activity of potato enzyme/extract? Introduction: Proteins are polymers that are made up of smaller units/monomers called amino acids. There are 20 different types of amino acids‚ thus make up many different combinations in types‚ numbers of amino acids as well as their orders – an explanantion for why there are so many proteins. Every protein‚ due to various reactions of amino acids to each other‚ have its own
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effect of pH on amylase activity This practical allows you to: * discover how pH affects the rate of an enzyme controlled reaction * evaluate the experimental procedure Procedure SAFETY: Follow your teacher’s instructions for handling the solutions. Wear eye protection when handling the iodine solution. Investigation * Place single drops of iodine solution in rows on the tile. * Label a test tube with the pH to be tested. * Use the syringe to place 2 cm3 of amylase into the
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Lab 1: Effect of pH on sodium benzoate‚ a food preservative Sheikh M Zakaria Person no. 36295651 TA: Synthia Gratia Date of Submission: 05/29/13 Abstract Sodium Benzoate is a common food preservative used in food products such as jams and jellies‚ soft drinks‚ pickles‚ condiments etc and in tinned products in the market. This experiment aimed to determine whether benzoic acid is formed from it’s superior soluble form sodium benzoate in stomach acid‚ which is simulated by HCl (pH=2). It has been
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Labour—are there “optimal” levels? In his book An Inquiry into the Nature and Causes of the Wealth of Nations‚ Smith (1887) has put forward the argument that division of labour helps improve average labour productivity. It was suggested that a lack of specialization hinders labour productivities. However‚ over the years‚ scholars have also found out the limitations of practising division of labour‚ examples include the decrease of incentives for workers due to the repetitive natures of their work and the
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A pH meter is an electronic device used for measuring the pH (acidity or alkalinity) of a liquid (though special probes are sometimes used to measure the pH of semi-solid substances). A typical pH meter consists of a special measuring probe (a glass electrode) connected to an electronic meter that measures and displays the pH reading. A colorimeter is a device used in colorimetry. In scientific fields the word generally refers to the device that measures the absorbance of particular wavelengths
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