that causes the jelly to remain in liquid form. Design and perform an experiment (p. 1-2) 1 (Answer varies with Ss. The recommended quantity of jelly powder and water is stated on the packet of the jelly powder. Jelly will not set if it is too dilute.) 2 Method II. This makes sure the concentrations of the jelly solutions in different containers are the same. A Identifying variables |Independent variable |Dependent variable |Controlled variables |Control
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will happen to the urine volume and concentration as the solute gradient (concentration) in the interstitial space is increased? Explain!!! (3 points) It increases because ADH causes water to move out of urine and the more solute there is the more concentrated the urine. 16. Speculate on ways that desert rats are able to concentrate their urine significantly more than humans? (Think: Hormones) (2 points) They probably produce more ADH to get all the water possible from the urine as there is not
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a non-reducing sugar can be hydrolysed using dilute hydrochloric acid. After hydrolysis and neutralization of the acid‚ the product may be a reducing sugar that gives normal reactions with the test solutions (Benedict’s solution /Fehling solution). Sucrose is the most common disaccharide non-reducing sugar. TEST FOR REDUCING SUGAR Procedure 1. A liquid food sample does not need prior preparation except dilution if viscous or concentrated. For a solid sample prepare a test solution by
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CORE ONE: MAINTAINING A BALANCE • IDENTIFY THE ROLE OF ENZYMES IN METABOLISM‚ DESCRIBE THEIR CHEMICAL COMPOSITION AND USE A SIMPLE MODEL TO DEMOSTRATE THEIR SPECIFITY ON SUBSTRATES. Enzymes are biological catalysts this means that they lower the energy required to start a chemical reaction within a cell but don’t get used up by that reaction. Every reaction and process in the metabolism of the cell is controlled by a specific enzyme. Enzymes are globular proteins whose shapes are specialised
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Describe the mechanism by which normal fluid regulation in the body occurs? The kidneys remove extra body fluids in the bloodstream; this waste is stored in the bladder. If the fluid regulations system is working right the kidneys will make less urine to save your body’s fluids so you don’t become dehydrated. 2. What is considered to be excessive thirst and urination in an adult? Excessive thirst is the intake of more than one gallon of fluid per day. Excessive urination is more than 3.5
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Describe etiology‚ pathophysiology‚ signs/symptoms‚ and nursing care of a client experiencing stress. Etiology of Stress: Situational Factors: Situational stress arises from personal or family job changes or relocation. Stressful job changes include: downsizing‚ transfers‚ promotions‚ restructuring‚ changes in supervisors‚ and additional responsibilities. Adjusting to chronic illnesses can make one feel stressed. Common diseases such as obesity‚ hypertension‚ diabetes
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increases surface area for a faster rate of reaction. 10) Why is the experiment made in a well-ventilated room? To prevent burning of the substance. 11) explain the term (decant). Filter/Pour the liquid leaving the solid alone. 12) Why is concentrated sulphuric acid not used to dry ammonia? Because it will reach the base ammonia‚ which is neutralization reaction. 13) Why should samples be taken from different parts of the field? To get more accurate results. 14) Suggest why it is important
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Chapter 25 Control of Body Temperature and Water Balance PowerPoint Lectures for Biology: Concepts & Connections‚ Sixth Edition Campbell‚ Reece‚ Taylor‚ Simon‚ and Dickey Lecture by Edward J. Zalisko Copyright © 2009 Pearson Education‚ Inc. Introduction: Chilling Out Bears sleep a lot during winter But bears do not hibernate Instead‚ they become dormant – Body temperature drops from 37°C to 31–34°C – True hibernators may cool to 30°C Dormant bears – Are easily awakened – True
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exercise is about diagnostic Urinalysis. Urine reflects the many chemical components found in blood. This test is a good measure of health of endocrine system‚ kidneys‚ and urinary tract. Artificial urine samples are used for today’s lab thank goodness. The test that this lab is mostly focused on is called “dipstick” urinalysis test where students will analyze the chemical composition of urine by dipping the chemical indicator stick or “dispstick” into a sample of urine. The chemicals in the pad of the indicator
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Weigh yourself before practice and again after practice. For every pound you lose during the workout you will need to drink 2 cups of fluid to rehydrate your body. 2.Urine color: Check the color of your urine. If it is a dark gold color like apple juice‚ you are dehydrated. If you are well hydrated‚ the color of your urine will look like pale lemonade. Thirst is not an accurate indicator of how much fluid you have lost. If you
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