Biruiet Test: Procedure Instead of the Biuret Reagent‚ the following may be used: * Fehling’s Solutions A and B * Sodium hydroxide and copper (II) sulphate solutions 1. Add 2 cm3 of the liquid food sample* to a clean‚ dry test tube 2. Add 2 cm3 of Biuret Reagent. Alternatively: * Use sodium hydroxide solution and copper sulphate solution instead. Add 1 cm3 of sodium hydroxide solution (40% or bench solution) and 1% copper (II) sulphate solution dropwise – drop by drop - to
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Introduction Maintaining proficeint oral hygiene through the prosedure of brushing and flossing can be expostulated as one of the most effective methods of preventing dental caries‚ but the above mentioned methods are not the only methods used to prevent dental caries. As for most of the people‚ having proficeint oral hygiene is not the first thing that arises thier thourghts when they are informed on having a healthy diet (1). This essay relates to brushing and floosing in particular as for touching
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Throughout time many athletic players drink sport drinks like gatorade or powerade but the question is when should we drink sport drinks or water. Your body needs water to maintain performance. Water is composed of two hydrogen and one oxygen atom. For your body to maintain athletic performance it must have oxygen in the muscles (which water contains). When exercising we burn carbohydrates. When we lose these carbohydrates they need to be replaced. There are many alternatives to replace carbohydrates
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carbohydrates‚ lipids‚ nucleic acids and proteins. Carbohydrates are the most abundant of these four macromolecules. Its basic units are called monosaccharide such as glucose‚ galactose and fructose. Monosaccharide can be linked together to form disaccharide and polysaccharide such as starch and cellulose. There are many functions of carbohydrates such as storage and transport of energy (starch) and structural component
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Case Study Summaries Case 1: J. Wellington Wimpy. Wimpy’s burger meal likely contained simple carbohydrates from the white flour bun‚ sugars in the ketchup‚ and saturated fats from the beef patty and cheese slice. Conversely‚ his turkey sub meal after the transformation likely provided complex carbohydrates from the whole wheat sub roll‚ lower amounts of saturated fats with high amounts of unsaturated fats in the turkey breast slices‚ and unsaturated fats from the veggies. Carbohydrates‚ which
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FORENSIC CHEMISTRY FORENSIC CHEMISTRY SUMMARY NOTES |Ensuring accuracy and contamination of samples for analysis – 1a and 1A |Ensuring accuracy and contamination of samples for analysis – 1a and | | |1A (continued) | |Caution must be taken by scene investigators with regard to their tools‚ |
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Chapter 1. Microbiology – Diversity of Organisms Microorganisms- too small to be seen with the unaided eye “germ”- rapidly growing cell Microbes in our lives Pathogenic- disease causing Decompose organic waste Producers in ecosystem (photosynthesis) Produce industrial chemicals such as ethanol and acetone Produce fermented foods ( vinegar‚ cheese‚ bread) Produce products used in manufacturing (cellulose) and treatment (insulin) Designer Jeans: Made by Microbes? Stone washing- Tricoderma
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INTRODUCTION TO SCIENTIFIC TERMINOLOGY The purpose of this document is to introduce root words and their definitions. These words play a vital role in Biology because many scientific terms are based on these words. Because these root words are Greek or Latin in origin‚ their meanings have remained consistent throughout time. By becoming familiar with root words and their definitions you can determine general meanings of many terms by simply applying these root word definitions. For example‚ the
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Lab Report Useful links http://www.psychwww.com/tipsheet/labrep.htm http://mhhe.com/biosci/genbio/maderinquiry/writing.html https://owl.english.purdue.edu/owl/section/2/10/ A scientific report usually consists of the following: 1. Title 2. Abstract 3. Introduction 4. Materials and methods 5. Results 6. Discussion 7. Literature cited Title The title should be less than ten words and should reflect the factual content of the paper. Scientific titles are not designed to catch
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Abstract This experiment was carried out to monitor the ability of the Barley Amylase Enzyme to effectively break down starch in solutions that are increasing in neutral pH. To do this the experiment was carried out so that tubes containing a reaction solution of the Amylase enzyme and starch were simultaneously mixed. The reactions were then introduced to I2-KI‚ which stopped the reactions‚ at two minute intervals. Each of these trials was repeated three times to ensure proper accuracy. After
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