Enzymes are proteins which serve to reduce the activation energy required for biological reactions (Russell and others 2010). This allows biologically important chemical reactions to occur rapidly enough to allow cells to carry out their life processes (Russell and others 2010). Enzymes are made of one or more polypeptide strands‚ which individually or as an associated complex take on a three-dimensional shape. When properly associated‚ these shapes form the active site and other supporting structures
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Action of enzymes as catalysts in biochemical processes * Enzymes acts as catalyst and increase the rate of all the chemical reactions. * Enzymes are also described by two properties like all other catalysts. It composed of two main functions. * The first function is that‚ they increase the rate of chemical reactions by without consumed themselves or undergo any change or alteration in the reaction. . ( Zemitec et‚al 2008). * The second function is‚ they increase reaction rates
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Conclusion 7 8.0 Appendix 8 9.0 Reference List 10 1.0 Abstract Enzymes are catalysts to ensure homeostasis in the body [2]. Homeostasis is the tendency to maintain the internal environment [2]. Hydrogen peroxide is an oxidizing agent that can be decomposed by catalase [11]‚ the liver is able to decompose hydrogen peroxide enzymatically because it contains catalase [12]. The reaction rate of an enzyme catalysed reaction under the effect of changes in temperature was tested in this
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This lab was performed in order to discover the activity of the enzyme catecholase in different pH levels as well as its absorbance in differently concentrated solutions. A spetrophotometer was used to measure the absorbance of the enzyme catecholase in different pH solutions as well as to measure the absorbance of catecholase in solutions with different concentrations of potato juice and phosphate buffers. Absorbance of the enzyme catecholase was at an optimum level when pH was close to neutral
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Atausch July 28‚ 2014 Bio 102 Lab Final Exam: Acids and Enzymatic Reaction Purpose: To examine how an acidic fluid will modify the outcome of an enzymatic reaction. Introduction: Enzymes are “specialized proteins made by living cells that serve as biological catalysts.” (eScience Labs‚ LLC‚ 2013) These enzymes “allow certain industrial processes to be carried out at normal temperatures and pressures‚ thereby reducing the amount of energy and expensive equipment needed.”(BBC‚ 2012) Enzymatic
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Objectives for Lecture 9 Know the difference in resolution and magnification between light and electron microscopes. Understand the process of cell fractionation based on centrifugation and know what the purpose of cell fractionation is. Know what the differences in cell structure are between prokaryotic cells and eukaryotic cells Know that most eukaryotic cells are between 10-100 m in diameter‚ whereas most prokaryotic cells are about 1 m in diameter. Know the following terms‚ plasma
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diagram of the human digestive system. (Total 4 marks) 3. Describe the role of enzymes in the process of digestion of proteins‚ carbohydrates and lipids in humans. (Total 6 marks) 4. Draw a labelled diagram of the digestive system. (Total 5 marks) 5. State the sources‚ substrate‚ product‚ and optimum pH conditions for the enzyme amylase. (Total 4 marks) 6. Describe the role of enzymes in digestion with reference to two named examples. (Total 5 marks) 7. What sequence
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like me. Glucansucrase is an enzyme used by bacteria in our human mouths to produce long sticky biofilm chains to stick teeth and cause tooth decay1. From the Protein Data Bank‚ I know that the bacteria use the Glucansucrase to build long‚ sticky chains of sugars called glucans. These glucans glue the bacteria to the surfaces of the teeth and form a biofilm which is difficult to remove2. Glucansucrase has two reactions2. Firstly‚ the enzyme breaks sucrose into glucose and fructose
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Enzyme Report Case 1 - Hereditary Fructose Intolerance 1 & 2. Enzymes take on a variety of roles in the human body at the cellular level. Specifically‚ they aid in the breakdown of macronutrients such as glucose and fructose so that the body can use them. Although reactions within the body would occur without enzymes‚ enzymes provide control because the reaction is not needed all of the time. Enzymes function in specific environments such as temperature or pH; some enzymes are specific
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that loses its terminal phosphate becomes ADP. 6. ADP has two phosphates. 7. ATP can be resynthesized from an ADP by the process called phosphorylation. 8. Without enough ATP‚ cells quickly die. C. Glycolysis 1. Glycolysis is a series of ten enzymes-catalyzed reactions that break down the 6-carbon glucose molecule into two 3-carbon pyruvic acid molecules. 2. Glycolysis occurs in the cytoplasm. 3. Glycolysis is referred to as the anaerobic phase of
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