Performed: 02/05/2013 Submitted: 02/06/2013 Section 1: Title Physical and Chemical Properties Section 2: Purpose This labs is intended to help me investigate chemical and physical properties of pure substances. Section 3: Procedure In this experiment‚ I observed substances in their natural state‚ and recorded their apparent physical properties. I then tested the substances to determine how they react when their natural environments were altered. The pure substances were tested to see
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DIGESTION OF CARBOHYDRATES Digestion of carbohydrate begins in the mouth‚ with the secretion of the enzyme salivary amylase from the serous cells of the salivary gland. This enzyme breaks starch and glycogen into disaccharides. The mucous cells of the salivary gland secrete a mucus‚ which causes the food to stick together‚ and acts as a lubricant to aid in swallowing. The salivary glands are grouped into three categories: the parotid gland‚ submandibular glands‚ and sublingual‚ all located
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November 28‚ 2014 ! ! Physical and Chemical Properties! Purpose/Hypothesis:! • The purpose of this experiment is to investigate the chemical and physical properties of pure chemical substances. A property of a substance is some distinguishing characteristic. Some of the most common physical properties are color‚ odor‚ hardness‚ density‚ melting point‚ boiling point‚ and solubility in various solvents. For all of these properties‚ no chemical change takes place. Chemical properties describe the
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___________________. microfilaments Name the two types and what they’re composed of: _______________ thin filaments composed of ___________________ protien actin protien myosin thick filaments _______________ composed of ___________________ 8. Arrangement of myofilaments. Give the letter name of each band: Dark band → A band ___ I Light band → ___ band Match two definitions with each band: I - contains only thin filaments A contains I- defined by length of thick filament
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Cardiovascular Physiology and Blood Pressure July 27‚ 2009 BY 409L - LW Blake Perry Lab Partners: Jennifer Rastegar and John Riopka Abstract This experiment was designed to observe a baseline heart rate and blood pressure and to examine various modifications of the two. This experiment utilized both the BiopacPro and PhysioEx computer programs. The PhysioEx program was used to simulate a heart rate and modifications to it. The BiopacPro program was used to monitor a volunteer’s blood pressure;
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include the teeth‚ tongue‚ salivary glands‚ liver‚ gallbladder‚ and pancreas. To achieve the goal of providing energy and nutrients to the body‚ six major functions take place in the digestive system ingestion‚ Secretion‚ mixing and movement‚ digestion‚ absorption and excretion. There are two kinds of organs that make up the digestive tract are the mouth‚ esophagus‚ stomach‚ small intestine‚ large intestine also called the colon - rectum‚ and anus all of which are hollow. Inside these hollow
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Exercise 8: Compare and contrast multiprocessing and concurrent processing. Describe the role of process synchronization for both systems. Exercise 10: SEE ANSWERS Exercise 13: SEE ANSWERS Advanced Exercise 16: SEE ANSWERS ANSWERS: Exercise 2: a. Example of Deadlock: When two people are about to buy the same product at the same time. b. Example of Starvation: When one person borrowed a pen from his classmate and his classmate gets his pen back. c. Example of Race:
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Some physical properties: transparency‚ flexibility‚ elasticity‚ permeability‚ water resistant‚ electrical resistance‚ Specific Gravity‚ soft when hot. Some chemical properties: solubility‚ chemical resistance‚ thermal stability‚ reactivity with water‚ flammability‚ heat of combustion. Resin refers to the basic chemical composition of each type of plastic. Each resin has unique properties and is used (often mixed with additional chemicals and materials) in the manufacture of a variety of plastic
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foil turn brownish red once added to Crystal “X” and Liquid “Y” solution? 4. Were Liquid “X” and Liquid “Y” the same liquid? 5.What chemical reaction happened that made vapor during the combination of metal foil and Liquid “Z”? 6. What made the liquid turn darker in the combination of metal foil and Crystal “X” and Liquid “Y” solution? 7. What made up Crystal “X”? 8. Is Crystal “X” even a crystal? 9. What’s in metal foil that made it react to both the solution of Crystal “X” and Liquid “Y” and
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Digestion is the complex process of turning the food you eat into the energy you need to survive. The digestion process also involves creating waste to be eliminated. The digestive tract (or gut) is a long twisting tube that starts at the mouth and ends at the anus. It is made up of a series of by muscles that coordinate the movement of food and other cells that produce enzymes and hormones to aid in the breakdown of food. Along the way are three other organs that are needed for digestion: the liver
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