LABORATORY 3: LABORATORY 3: Basic Chemistry for Investigating Living Systems Abstract The purpose of this experiment was to explain how colorimetry can be used to qualitatively detect cellular chemical components; to chemically differentiate between proteins‚ sugars‚ starches‚ and lipids; to identify the roles of molecular components in living systems; to comprehend the value of using a systematic approach to research; and to describe why hypotheses‚ controls‚ standards‚ and quality control
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The Use of Sweeteners and the Rise in Obesity I have selected to discuss the relationship of the sweetener sugar (sucrose) between its consumption and the rise in obesity. There is a problem with the increase in sugar consumption. Sugar both drives fat storage and makes the brain think it is hungry‚ setting up a “vicious cycle‚” according Robert Lustig‚ MD‚ a UCSF pediatric neuroendocrinologist. Obesity is one of the top underlying preventable causes of death in the U.S. The rise of obesity
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Principles of Human Physiology‚ 4e (Stanfield) Chapter 20 The Gastrointestinal System 20.1 Multiple Choice Questions 1) Which of the following is NOT a basic process of the gastrointestinal system? A) digestion B) filtration C) absorption D) secretion E) motility Answer: B Diff: 4 Page Ref: 568 2) Which of the following is the correct order of the layers of the gastrointestinal tract wall‚ from lumen to external surface? A) mucosa submucosa muscularis externa serosa
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JarynaLimbauan IV-A BSBT Euriz Ramos Strategy: Lecture I. Objectives At the end of the lesson‚ the students are expected to: 1. Identify the structure and components of gastrointestinal tract; 2. Initiate consciousness in maintaining a healthy gastrointestinal tract; 3. Observe slides of rugae and villi layers. II. Subject Matter Topic: Gastrointestinal Tissues III. Materials A. PowerPoint presentation 1. Parts and Function of Gastrointestinal Tissues
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Contents INTRODUCTION 3 BALANCED DIET 4 FOOD GROUPS 5 CARBOHYDRATES 5 MAIN SOURCES 5 FUNCTIONS 5 ENERGY SUPPLY 5 PROTEINS 6 MAIN SOURCES 6 DIETARY IMPORTANCE (FUNCTIONS) 6 ENERGY SUPPLY 6 LIPIDS 7 PRINCIPAL SOURCES 7 DIETARY IMPORTANCE (FUNCTIONS) 7 ENERGY SUPPLY 7 VITAMINS 8 MINERALS 9 WATER 10 FUNCTIONS 10 DIETARY FIBER /ROUGHAGE 11 FUNCTIONS 11 PROBLEMS OF AN UNBALANCED DIET 12 MALNUTRITION 12 EFFECTS OF MALNUTRITION 12 CONSTIPATION 13 HEART DISEASE 13 OBESITY 14 STARVATION 15 Poverty 15 Over
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Panocha | Refiner’s syrup | Sorbitol | Maple syrup | Molasses | Raw sugar | Rice syrup | Sorghum | Sucrose | Mannitol | Treacle | Turbinado sugar | Yellow sugar | Corn sweetener | Dehydrated cane juice | Saccharose | Agave Nectar | Xylose | Disaccharides | Milk sugar | GranulatedSugar | Monosaccharide | 2) Create a table and list 10 or more different foods and drinks that have your chosen ingredient. FOOD AND DRINKS CONTAIN SUGAR | FOOD | DRINKS | Cookies and biscuits | Coca Cola |
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job of the lactase enzyme? Lactase is an enzyme which breaks down lactose‚ a sugar found in milk and other dairy products. 6. In which test tubes was the glucose present? Why? In test tube #1 the enzyme broke down the lactose . Lactose is a disaccharide of glucose and galactose. The lactose tablet contained lactase which hydrolyzed the lactose into constituent galactose and glucose. Glucose is naturally occurring in skim milk thus in test tube # 2 found in a much smaller amount than test tube
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Respiration is the process by which energy is released energy from glucose in the presence of Oxygen‚ forming carbon dioxide and water as waste products. Glucose releases energy in a series of reactions that take place inside components of the cell. The stages are briefly explained below as were briefly explained in part A‚ the process then goes through‚ glycolosis‚ link reaction and then the Krebs cycle. The volume of CO2 that is produced in the Krebs cycle is important as this is the dependant
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10 - 11 - 12 - 13 - 14 (alkaline) human body range: 7.2-7.4 Biological molecules (organic molecules) Carbohydrates: easily used and best source of energy contain carbon‚ oxygen‚ hydrogen types: monosaccharide (small chain of carbons)‚ disaccharide (two monos)‚ polysaccharide (many monos) linked by dehydration synthesis example: glucose Lipids: insoluble‚ contain more energy than carbs but harder to break down fats: contain 3
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Environmental Chemistry It often matters how much given atoms combine‚ in what arrangement‚ with what others‚ what impulse they receive‚ and what impart. The same ones make up earth‚ sky‚ sea‚ and streams; the same as the sun‚ the animals‚ grains and trees‚ but mingling and moving in every different ways. - Lucretius (95-52 B.C.) in The Nature of Things I. Physical Chemistry Why is Physical Chemistry important in the study of Environmental Engineering? • Applied physical chemistry procedures
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