determine whether given unknown solutions A‚B‚C‚D‚E‚F and G contain Reducing/NonReducing Sugars‚ Lipids‚ Proteins or Starch. Apparatus/Materials: - Bunsen burner - Solutions A‚ B‚ C‚ D‚ E‚ F and G (unknown) - Measuring Syringes - Stirring Rod - Beakers - Test tubes (7)plus holder and tray - Copper sulphate solution (CuSO4) - White dropping ray - tripod stand and mesh -stopwatch - Biuret͛s solution - Sodium Hydroxide solution (NaOH) (or Potassium Hydroxide solution) - Hydrochloric Acid (HCl)
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ideologies in the past continue to have consequences in the lives of many today. This is the case with Western Australia’s policy of resettlement for Aboriginal people during the 1930’s. Jack Davis‚ an Aboriginal playwright‚ constructed the play No Sugar to challenge the view that this resettlement is acceptable. Davis uses dramatic techniques such as costume‚ setting‚ movement and symbolism to confront an audience of the injustice of resettlement and therefore initiate the process of attitudinal change
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E X E R C I S E 4 Endocrine System Physiology O B J E C T I V E S 1. To define the following terms: metabolism‚ hormone replacement therapy‚ type 1 diabetes‚ type 2 diabetes‚ and glucose standard curve. 2. To explain the role of thyroxine in maintaining an animal’s metabolic rate. 3. To explain the effects of thyroid-stimulating hormone on an animal’s metabolic rate. 4. To understand how estrogen affects bone density. 5. To explain how hormone replacement therapy works
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Osmosis is the selective diffusion of water and other molecules across membranes‚ which in the case of living organisms‚ the solvent (water) would have net movement across a selective permeable membrane. Osmosis only occurs when a membrane such as that of a cell is permeable to water molecules but not to specific solutes (Tortora & Derrickson 2014). Certain simple molecules such as oxygen‚ water and carbon dioxide can travel across the cell membrane by osmosis‚ a passive process similar to other
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NURSING Benedict’s Solution Submitted by: Marco Antonio A. Baltazar BSN IV-3 Submitted to: Prof. Marilyn Agravante Community Health Nursing Benedict’s Solution What is Benedict’s Solution? Benedict’s solution‚ deep-blue alkaline solution used to test for the presence of the aldehyde functional group‚ - CHO. The substance to be tested is heated with Benedict’s solution; formation of a brick-red precipitate indicates presence of the aldehyde group. Since simple sugars (e.g.‚ glucose)
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between different concentrations. Material and Methods * Two beakers * Membrane holder * Four Dialysis membranes: 20 (MWCO)‚ 50 (MWCO)‚ 100 (MWCO)‚ 200 (MWCO). * Membrane barrier * Four solutes: NaCl‚ Urea‚ Albumin‚ Glucose * Solution dispenser * Deionized Water * Beaker Flush * Timer * Computerized Simulator Using the computerized simulator‚ the first step of the first experiment‚ you must place the 20 (MWCO)
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Testing for reducing sugars‚ non-reducing sugars‚ starch‚ lipids and proteins in unknown substances: Our aim: was to find out which substances from our five samples have reducing sugars present to determine what they may be for example; they could be monosacchrides or disaccharides. This was carried out by using Benedict’s test. To find out which substances from our five samples were non-reducing sugars‚ since some disaccharides are reducing sugars and this would be carried out by using Benedict’s
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b.) The mass decreased or increased in each cylinder‚ depending on if the solution was hypotonic‚ hypertonic or isotonic. In Cylinder (A) the mass decreased‚ so liquid was released from the potato‚ because the cells in the potato would have burst if even more was absorbed‚ whereas the length stayed the same. In Cylinder (B) the mass and length increased‚ which means the potato cells absorbed some Sodium Chloride (NaCl)‚ so the cells don’t shrivel up and die. For Cylinder 3 the mass and length also
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this experiment is conducted so that we may know how things happen in the level of cells. Objectives: 1. To demonstrate the principle of Osmosis and to apply it with actual life situations. Materials and Methods: • Materials: Compound microscope Glass Slide Cover Slip Tissue Paper Blade Rhoeo discolor Leaves Salt Solution • Procedures: Place a drop of distilled water on a clean glass slide. With the use of a blade‚ cut a thin slice of the lower epidermal
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Test Item File Electronic Devices and Circuit Theory‚ 9e (Boylestad) Chapter 1: Semiconductor Diodes 1) An intrinsic semiconductor is one that is as pure as present-day technology can make it. 2) Electrons are the minority carriers in an n-type material. 3) Holes are the majority carriers in a p-type material. 4) The quantum-Volt (qV) is the unit of measurement for electron energy. 5) A free electron has a higher energy state than any that are bound to their nucleus.
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