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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Bacterial biosensors for victual processing The biosensor research has blossomed into a mature and highly active field over the past 20 years‚ mutually in the laboratory and in the business-related district‚ attract huge attention due to the pledge of holdings for vital aspects of the human life. The wished-for work aims to engineer a capacitive biosensor‚ which will be able to perform label-free and fast electrochemically immune-detection based on very small biological samples. This
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equation of state‚ critical phenomena‚ continuity of states‚ critical constants. * Liquid state: physical properties of liquids and their measurements: surface tension and viscosity. Unit II. Basic physical chemistry II Chemical kinetics and catalysis: order and molecularity of reactions‚ rate laws and rate equations for first order and second order reactions (differential and integrated forms); zero order reactions. Determination of order of reactions. Temperature dependence of reaction rate
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titrant. Introduction Proteins are large molecules found in the cells of living organisms and in biological fluids. They play crucial roles in virtually all biological processes. The major functions of proteins can be summarized as: enzymatic catalysis‚ control of growth and differentiation‚ transport and storage‚ coordinated motion‚ mechanical support (Stryer‚L.‚ 1999). Some proteins are globular and water soluble‚ like those found in blood‚ milk‚ and egg white. Others are fibrous and relatively
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itself. Certain developing agents reveal different properties of the fingerprint. Some fingerprint reagents are specific‚ for example ninhydrin or diazafluorenone react with certain amino acids. Ethyl cyanoacrylate polymerisation works by water-based catalysis and polymer growth. Fat layers as thin as one molecule can be detected with vacuum metal deposition using gold and zinc. More mundane methods‚ such as the application of fine powders‚ work by adhesion to sebaceous deposits. All of these methods are
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Práctica de La materia de Bioquímica I‚ tercer semestre de La Carrera de ing. Bioquímica‚ semestre 2009-2010. Practica 2. Enzimas: Catalasa y alfa-amilasa Dra. America Pech y Akè Enzimas: Catalasa y alfa-amilasa Objetivos General. Que el alumno conozca‚ comprenda y pueda observa y valorar la acción de las enzimas en los alimentos y pueda comprender cada uno de los conceptos relacionados con las enzimas como son la catalasa y alfa amilasa en las practicas a realizar en diferentes alimentos
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Determining the Production of Glucose During Changes in Temperature and pH‚ and Manipulation of Specificity and Cofactors BIOL-1406-SL8 November 16‚ 2012 Abstract Enzymes are biological catalysts. They work by lowering the activation energy needed to initiate a chemical reaction. Enzymes work within an optimal temperature and optimal pH. Enzymes are highly specific for a single substrate. The Enzyme is usually much larger in size than the substrate it binds to. In some cases‚ an enzyme requires
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The Different Roles of Macromolecules in Biology.There are four types of macromolecules that I am going to describe: Proteins‚ carbohydrates‚ lipids and nucleic acid. I will also describe the functions and why they are important in our bodies. Proteins Proteins are polymers of amino acids that are joined head-to-tail in a long chain that is then folded into a three-dimensional structure unique to each type of protein. The covalent linkage between two adjacent amino acids in a protein (or polypeptide)
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Manufacturing of Aerogel Aerogel was found by Steven Kistler in 1931‚ but its application cannot be in the market and consumer because there is no item that can use the aerogel. The 1980s the aerogel have a place to be a raw material in existing and new product after they discover a new research about aerogel. They have been considered as a new development material that better than polyurethane foam in refrigerators‚ and as a heat insulator for windows. Aerogel is produced by removing all the
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Module 3: Kinetics of Chemical Reactions Introduction to Kinetics Chemical thermodynamics has answered the question “can a specified chemical reaction take place?” (i.e. is the reaction thermodynamically favourable?). • However‚ chemical thermodynamics hasn‟t answered the question “HOW FAST will a specified chemical reaction occur?” o Many thermodynamically favourable reactions are so slow (ex: metamorphic transformation of rocks‚ corrosion of marble sculptures owing to weathering) that they can
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