Experimen ChemiCal Basis of Chemical Basis of Life – Part I Carbohydrates H a n d s - o n l a b s ‚ i n c . Ve r s i o n 42-0144-00-01 LAB REPORT PHOTOS – Include two digital photos with your lab report‚ either as separate attachments to an e-mail or paste into your document. 1. Photo #1 – Take a photo of your finished experiment in exercise 2‚ testing for sugars. (The 3 test tubes after heating‚ but while still in the pan.) Be sure to take a view that shows the colors in all the tubes ^Picture
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Investigation of Action of Saliva and 3 M Hydrochloric Acid in Two Carbohydrate Solutions Title : Investigation of Action of Saliva and 3 M Hydrochloric Acid in Two Carbohydrate Solutions Objective : To investigate the action of saliva and 3 hydrochloric acid in two carbohydrate solution Results Table1: Observation Conclusion Solution A Benedict’s test: Blue coloration turned to brick red precipitate. Reducing sugar is present in the solution A. Iodine test: The coloration remained
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Although used by all cells‚ carbohydrates are specifically vital for the ordinary functioning of the valuable anxious system‚ brain and red blood cells. Fibre‚ an indigestible form of carbohydrate discovered in complete grain meals‚ fruits and veggies‚ allows keeping normal bowel motion that reduces risk of constipation‚ haemorrhoids‚ and diverticulosis and colon
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Low Calorie Diet Versus Low Carbohydrate‚ What is the Difference? Comm/155 05/12/13 Sandra Davis Being overweight and obese has become an increasingly alarming problem in this country. In 2007 the Center for Disease Control stated that between 1980 and 2004 obesity prevalence doubled among adults‚ and over 34 percent of all American adults were overweight or obese in 2006. Obesity is known to cause an increased risk of many diseases‚ such as heart disease‚ high blood pressure‚ diabetes‚ and
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Austin Peay State University Department of Chemistry CHEM 1021 IDENTIFYING CARBOHYDRATES (adapted from Blackburn et al.‚ Laboratory Manual to Accompany World of Chemistry‚ 2nd ed.‚ (1996) Saunders College Publishing: Fort Worth) Purpose: To become familiar with some of the characteristic reaction of carbohydrates. To identify an unknown carbohydrate. Caution: Wear eye protection because of the possible shattering of dropped glassware and because acids are used in this experiment
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Undergraduate Questions (50 Pts) 1. (4 pts) A chemist working in a pharmaceutical lab synthesized a new drug as a racemic mixture. Why is it important that she separates the two enantiomers and test each for its biological activity? 2. (6 pts) Phosphoric acid (H3PO4) has three dissociable protons‚ with the pKa’s shown below. Which form of phosphoric acid predominates in a solution at pH 4? Explain your answer. Acid pKa H3PO4 2.14
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Nutrition Research Task – Year 10 Pass Carbohydrate loading is a strategy involving changes to training and nutrition that can maximise muscle glycogen stores prior to endurance competition. The technique was originally developed in the late 1960’s and typically involved a 3-4 day ’depletion phase’ involving 3-4 days of hard training plus a low carbohydrate diet. This depletion phase was thought to be necessary to stimulate the enzyme glycogen synthase. This was then followed immediately by
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Carbohydrate Loading There are many threats to an athlete during physical endurance competition whether it is a marathon or the decathlon. The most common forms of these threats include hypoglycaemia‚ fatigue‚ and loss of morale (which is usually caused by hypoglycaemia and fatigue). There is one connection that can be made between these threats and that is that all are caused one way or another through the lack of carbohydrates (Peterson). The most common way to combat these threats
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Carbohydrate Metabolism Carbohydrate metabolism starts with digestion in the small intestines. This is the site where monosaccharides are absorbed into the blood stream. This type of metabolism is basically considered to be glucose metabolism because carbohydrates are eventually broken down into glucose so that it can diffuse into the blood stream. There are three hormones in the body that control the concentration on glucose in the body: Insulin‚ glucagon‚ and epinephrine. If sugars are too
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Effect of drinking soda sweetened high-fructose corn syrup on food Michael ABSTRACT in the with intake aspartame and body or weight G TordoffandAnnette To examine MAlleva suggest that sweet oral stimulation initiates a cephalic-phase metabolic reflex that increases appetite (10). The long-term effects of artificial sweeteners on food intake and body weight are less clear. Although some investigators report weight gain in animals given artificial sweeteners to eat or drink (1 1-13)
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