The effect of increasing substrate concentration on rate of an enzyme reaction. Enzymes are biological catalysts that lower a reactions activation energy making possible many of the reactions needed for life to exist. Enzymes have a high specificity which have been explained by many theories such as Fischer’s lock and key. Currently the most widely accepted theory is the induced fit hypothesis proposed by Koshland in 1958. This hypothesis solves some of the problems with the Lock and key theory
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Main text. Questions. Page 3. 1. What does e.coli stand for? E.coli stands for Escherichia coli. 2. What are the symptoms associated with E.coli bacterial infection? The symptoms are diarrhea‚pain‚cramping‚nausea and vomiting. 3. give a detailed comparison of the levels of the e.coli bacteria over the five week period as given above. Page 4. 4. What could possible reasons
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Introduction The population of a bacterium will grow successfully in a particular pattern known as ‘logarithmic growth’ if the location is appropriate and the proper nutrients are present. The bacteria numbers will increase and most likely continue to double in this area over time with optimal conditions. Optimal conditions meaning that there are no dangers or limiting factors‚ to inhibit growth in this area‚ such as disease‚ predators‚ competition or lack of food. At first the bacteria should reproduce
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MARKETING MANAGEMENT CASE STUDY ON Dettol Soap CONCEPT NOTE SUBMITTED TO – BY- Dr. Tanjul Saxena Dr. Yogesh Pande Dr. Vikash k. sinha DATE-24/01/2011 INDUSTRY- Soap Industry COMPANY- Reckitt Benckiser (India)
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General information: What is E.coli? Escherichia coli‚ or commonly referred to as E.coli is a foodborne pathogen that normally inhabits in the intestinal track of humans and animals. It is the most common and wide spread infecting organism and is in the family‚ Enterobacteriaceae. Enterobacteriaceae is a large family of Gram-negative bacteria‚ meaning the bacteria appear pinkish or red. How fast and how does it spread? The main way that E.coli can spread is through food and water supply. Common
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Case study “Economic Growth: Spot the Trend” In this case study we look at some data of Mangoland GDP. The various items listed have been taken from a more general table presented in the CSO publication Economics Trends. it must be emphasized that all components items are evaluated in constant price terms. Thus one of the exercises will be to calculate some “real” growth rates for the Mangoland. Other uses of such data are for interpreting past events and forecasting ones. Theses issues will
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“The higher the concentration of antiseptic‚ the more powerful it will be at inhibiting/ killing microorganisms which cause bacterial growth.” This theory supports my result because as you can see the zone of inhibition increases due to the increasing concentration of antiseptic. The higher concentration of antiseptic means it has been less diluted‚ which means its more stronger than other more diluted concentrations‚ this high concentration will determine how powerful the antiseptic will be at killing/inhibiting
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Escherichia coli. Materials For this lab you will need the following: LB Agar Petri dishes Beakers Test tubes CaCl2 solution Sensitive E. coli (-ampR) amp plasmids ampicillin -amp cells Water bath to heat shock cells A freezer to incubate cells Process Step 1: Wash hands and sanitize lab setting. This will prevent anything reacting with a substance that could have been present when it shouldn’t have been. Step 2: Ampicillin sensitive E. coli cells in log phase of growth are transferred
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Erica Osorio 5057497 Christian Roque and Rogerlio The Mechanisms by which E.Coli Cells Developed Immunities toward Ampicillin due to Plasmid and DNA Consumption U34 Abstract During the ampicillin experiment the ability to transform cells to make them adaptable to their environment was studied. The E.coli bacterial cell was used in order to observe how its DNA was able to change and develop immunity towards ampicillin. In order for this change to occur the use of several
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43. Tobacco 3 Tobacco e-Liquids are the best in class‚ which are reproductions of the rich flavours of tobacco found in cigars‚ pipes‚ and cigarettes. If you want to enjoy a rich and smoky blow out‚ this is the E-Liquid for you. Like all e-Liquids‚ Tobacco E-Liquids use a proportion of PG and VG for the base and use a special blend of flavouring to get the tobacco taste. If you want you can as well add Nicotine into the e-Liquids at an altering level. 44. Tobacco 4 There are a large variety of
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