Enzymes are biologic polymers that catalyze the chemical reactions that make life as we know it possible. The presence and maintenance of a complete and balanced set of enzymes is essential for the breakdown of nutrients to supply energy and chemical building blocks; the assembly of those building blocks into proteins‚ DNA‚ membranes‚ cells‚ and tissues; and the harnessing of energy to power cell motility‚ neural function‚ and muscle contraction. With the exception of catalytic RNA molecules‚ or
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Factors Affecting Enzymes The activity of an Enzyme is affected by its environmental conditions. Changing these alter the rate of reaction caused by the enzyme. In nature‚ organisms adjust the conditions of their enzymes to produce an Optimum rate of reaction‚ where necessary‚ or they may have enzymes which adapted to function well in extreme conditions where they live.Increasing temperature increases the Kinetic Energy. In a fluid‚ this means that there are more random collisions between molecules
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Enzymes are catalytic proteins that speed up chemical reactions by lowering the activation energy of the reaction. our body cells depend highly on enzymes to complete many important functions‚ such as digestion and metabolism. Enzymes are selective‚ in which each enzyme can only speed up a specific reaction. There are molecules that enzymes work with called substrates. substrate bind to an area of an enzyme called active site. There is specificity between the enzyme and substrate that react with
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Lab 4 Quiz 1. Enzymes and what is their function? a. Enzyme: biological catalysts that regulate chemical reactions that occur in cells. Responsible for things such as converting food to energy‚ replace old damaged tissues‚ disposal of cellular waste products. Are responsible for lowering the activation energy. 2. Most enzymes are proteins with three-dimensional shapes determined by their amino acid sequence. 3. Substrate – is a reactant molecule that binds to the highly specific active site
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The problem of garbage disposal and its possible solutions. Problem-Solution Essay Alexandra ID Almaty 2010 Problem/Solution Outline Title: The problem of pollution from garbage and its possible solutions. I. Introduction a. The average resident produces seven and a half pounds of garbage every day that is buried down in landfills and litters human’s lands costing a great amount of money. b. Each year‚ millions of dollars are spent picking up litter and more is
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Enzymes are proteins or nucleic acids that catalyze reactions. They are able to speed up reactions by reducing the activation energy of a reaction. Each kind of enzyme has a specific shape that matches its substrate so it can bind to its active site. Enzymes convert their substrates into a product. Enzyme activity are affected by factors such as temperature‚ pH‚ and time. If an enzyme is exposed to extreme heat‚ it will become denatured‚ that is‚ to become deformed and lose its original shape which
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Investigating the effect of changing substrate concentration on the activity of the enzyme catalase The aim of this experiment is to examine how the concentration of a substrate (hydrogen peroxide) affects the rate of reaction of an enzyme catalyse (found in liver cells) Research Question: how does changing the concentration of the substrate affect the rate of reaction of the enzyme catalyse? Hypothesis: As the concentration of the substrate increases‚ so does the rate of reaction until the reaction
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Use of Enzymes in Food Industry - Food industry utilizes a variety of enzymes for processing of various foods‚ e.g.‚ production of various types of syrups from starch or sucrose (a- and β- amylases‚ glucamylase‚ pullulanase‚ invertase‚ and glucose isomerase)‚ meat/protein processing using proteases‚ removal of glucose and or molecular oxygen (O2) using glucose oxidase and catalase‚ use of lactase in dairy industry and use of enzymes in fruit juice and brewing industries. Glucose oxides are obtained
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to Environmental Issues. Development Experience: Change and Challenges”‚ INTAN. V.2. Cracken‚ D.B. (2005). Proper Garbage Disposal and Handling.‚ Mensell Publishing Limited‚ New York. p. 34. China Daily (2010). “Environmental Perspectives and Behavior in China: Synopsis and Bibliography”‚ Environment and Behavior‚ 38:1. Deci‚ M. (2005). Research Methodologies. Understanding Research: Coping with the Quantitative-Qualitative Divide. London and New York: Routledge. Etzioni‚ R.B. (1997). Compliance Theory:
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Advance directive in a true definition means a written document that you will sign telling your surrogate what to do with your body when you’re sick or if you passed. The document indicates your choices about medical treatment; you can also name someone to make decisions about your medical treatment called a surrogate if you are unable to make these decisions. Basically a Advance directive is a way for your family to make medical decisions for your body when your in a critical state. This is made
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