Experiment 1 : Design and preparation of buffers effective at different pHs Abstract The body uses natural buffers to maintain the many different pH environments in our body. This is important for optimum activity of our enzymes. When doing experiments in vitro using these enzymes it is important to mimic intracellular conditions using artificial buffer systems in order to obtain accurate results. In this experiment the buffering properties of three artificial buffer systems containing acetic
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Temperature and pH will both effect and change the active site of an enzyme. Denaturing‚ the changing of the shape of an enzyme‚ will occur if a big enough change in temperature and pH to go away from that enzyme’s optimal conditions. Each enzyme has optimal conditions which is the best temperature and pH for that enzyme to function. When temperature and pH move away from those conditions the enzyme could slow down its rate of activity
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V. Lakshmi et al.‚ IJSIT‚ 2012‚ 1(2)‚ 106-113 FOOD ADULTERATION V. Lakshmi‚ R.V.LABS‚ Guntur‚ Andhra Pradesh‚ India Food is adulterated to increase the quantity and make more profit. The food is sucked of its nutrients and the place where the food is grown is often contaminated.For example:Milk is mixed with water. Vanaspati is used as an adulterant for ghee. Ergot is used as an adulterant for cereals.Chalk-powder is used as an adulterant for flour.Chicory is used as an adulterant for coffee
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Fast Food‚ Fat Food Nowadays‚ fast food is a very popular trend in Thailand. Teenagers think it is very smart when they go into the fast food restaurant‚ especially‚ the restaurant which is a part of foreign franchise restaurants. Not only teenagers that like fast food but also children and adults. In the busy schedule of modern times people have no time to prepare nutritious food during the day so fast food becomes a very convenient choice. However‚ there are several health issues related to consuming
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Experiment 5B: Ketone Reduction Objective: Using sodium borohydride as a reducing agent‚ the ketone 4-tert-butylcyclohexane is reduced to its corresponding alcohol. It is purified through extraction techniques to give the cis and trans diasteromer products. Procedure: The procedure was followed as outlined in Mayo’s book for Experiment 5B with the following modifications: 1. Reagents and Equipment – The reaction will be on a scale of 2X what is described in the text. 2. Reagents and Equipment
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Junk Foods Junk food is a popular term for any food which is low in essential nutrients and high in everything else particularly calories and sodium(2012‚ cited in Farlex). For the people who live in urban areas‚ junk food is not a new thing. They like junk foods owing to the fact that these foods are tasty and can be served quickly. That is why they are also called fast foods. However‚ although junk foods are delicious‚ they bring several bad impacts which can threaten our health such as
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greatest global crisis facing humanity in the twenty-first century. Overpopulation is the major global problem because of several reasons. Most of the problems we have today‚ such as ocean depletion‚ food shortages‚ water shortages‚ air pollution‚ water pollution‚ and global warming are the effects of overpopulation. The more people there are‚ the more resources consumed and the more waste created. A child born today in the United States for instance will produce fifty-two tons of garbage and consume
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Acid-Base Titration Using a pH Meter Bradley Holloway and Jennifer Parker Period 6 April 16‚ 2013 Introduction: In chemistry‚ the ability to find molarities of acidic and basic solutions is a convenient way to convert between moles of solute and the volumes of their solutions. Through the process of titration‚ the molarity of these acids and bases can be found to a high level of precision. To begin titration‚ one solution is added to a second solution slowly until a certain point
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There are different kinds of compounds‚ ionic‚ covalent‚ and acidic and over all of this the atoms making up the compounds are either binary or polyatomic. The simplest compounds to name are binary ionic compounds‚ for example NaCl‚ which is named Sodium Chloride. Na having a positive oxidation number goes first followed by Cl which having a negative oxidation number goes last and is changed from Chlorine to chloride the -ide indicating its negative charge. Of course‚ the
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William B. Heard Rigid Body Mechanics William B. Heard Rigid Body Mechanics Mathematics‚ Physics and Applications WILEY-VCH Verlag GmbH & Co. KGaA The Author William B. Heard Alexandria‚ VA USA For a Solutions Manual‚ lecturers should contact the editorial department at physics@wiley-vch.de‚ stating their affiliation and the course in which they wish to use the book All books published by Wiley-VCH are carefully produced. Nevertheless‚ authors‚ editors‚ and publisher do not warrant the information
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