“Use of Biuret Reagent to Test for Proteins In Food” Cindy Zhou Introduction Protein is a series of amino acids that are connected together by peptide bond. The bond is located between the end of previous amino acid‚ which is the carboxyl group‚ and the head of next amino acid‚ which is a amino group. The Biuret reagent is a solution of copper sulfate and potassium hydroxide. When peptide bond are presented‚ the copper (II) will interact with them (MadSci Network: General Biology). It is
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Polymers are a part of our every day life and without them around‚ this world would be very‚ very different‚ if not impossible to live in. However‚ most people do not even know what a polymer is‚ or just how widespread they are around us. Polymers are formed from hydrocarbons‚ hydrocarbon derivatives‚ or sometimes from silicon. They are the basis not only for numerous natural materials‚ but also for most of the synthetic plastics that one encounters in their lives. Polymers consist of extremely large
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A polymer is a substance formed by many molecules that are all strung together to form a long chain‚ and has been around since the beginning of time (Polymer). Examples of different polymers being used in everyday life are things like rubber and starch‚ which are both frequently used in the world (Brewer). Polymers also make up what are known as “polymer creatures‚” which are the things that are used in experiments about polymers. The polymer creatures‚ made out of two different polymers‚ are both
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Dealing with polymer waste Polymers can be made into a huge variety of items rather easily; this is why it is so popular. Nowadays it is used everywhere from everyday items such as cups‚ milk bottles and plastic bags‚ to medical and laboratory equipment. All applications use different types of polymers such as polyethene‚ polyvinyl chloride and polypropene. Polymers‚ also‚ can be used as a fuel source by burning under controlled conditions to release heat energy and therefore electricity. Despite
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#4 The Synthesis of Organic Polymers CHM2123‚ Section C October 21‚ 2014 Introduction: Organic polymers are macromolecules that are composed of smaller molecules called monomers. There are two main groups of polymers: natural polymers and unnatural (synthetic) polymers. Natural polymers include proteins such as cellulose and starch and are a necessity for our existence. On the other hand‚ synthetic polymers such as the polycarbonate in our lab goggles are
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plant . The fiber is most of the time spun into thread and used to make a soft but strong textile. Cotton is a valuable crop because only about 10% of the raw weight is lost in processing. Once natural wax‚ protein‚ and other unnecessary things are removed‚ what’s left is a natural polymer of pure cellulose. Cellulose is the structural component of the cell walls of green plants‚ many forms of algae and the oomycetes. Some species of bacteria separate it to form biofilms. Cellulose is the most common
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Discovered in 1838‚ proteins are recognized as a large number of superior organic compounds that make up living organisms and are essential for their functioning. In other words proteins are the building blocks of life. They do many tasks for the human body and other organisms‚ that could not be done individually. These macromolecules could function as structural proteins and form structures such as keratin in hair‚ teeth‚ bones‚ muscles‚ collagen in connective tissues‚ horns in animals
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POLYMER DATA HANDBOOK *Home *Browse/Search Contents *Browse by Polymer Class *Browse the Index *Online help Copyright © 1999 by Oxford University Press‚ Inc. EDITED BY JAMES E. MARK‚ UNIVERSITY OF CINCINNATI PUBLISHED BY OXFORD UNIVERSITY PRESS The online version of the Polymer Data Handbook includes key data on over two hundred polymers. Please note that entries are presented as PDF files and can only be read using Adobe Acrobat Reader Version 3. If you do not have the freeware reader‚
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The Polymer Envoys program would be very good for me because it will help me further my education by conducting research and this could help me when I go for nursing school. It can also teach me how to become better at research and help me grow better at my studies of science and learn how to use it. I think this program will teach me how science operates. I really enjoy science and writing research papers. This program can help me in the field I want to further in life and it will become very
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Proteins play an important role in the human body. The DNA molecule controls the synthesis of proteins. The DNA contains genes which are sequences of nucleotides and bases. Proteins are used for growth and repair. Proteins are made up of amino acids linked together by peptide bonds. Firstly ’amino acid synthesis ’ is the set of biochemical processes by which the various amino acids are produced from other compounds. The substrates for these processes are various compounds in the organism ’s diet
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