Membrane Transport Process Process Energy Source Description Examples Passive processes Simple diffusion Kinetic energy Kinetic energy Net movement of particles (ions. molecules. etc.) from an area of their higher concentration to an area of their lower concentration. that is. along their concentration gradient Movement of fats‚ oxygen‚ carbon dioxide through the lipid portion of the membrane‚ and ions through protein channels under certain conditions Osmosis Kinetic energy Simple diffusion
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Information”‚ USDA’s National Organic Program‚ http://www.ams.usda.gov/nop/ Consumers/ Consumerhome.html 3.Peter Singer‚ “Animal Liberation”‚ pp.147-150. 4.B. P. Baker; C. M. Benbrook; E. Groth; K. Lutz Benbrook. 2002. Pesticide residues in conventional‚ integrated pest management (IPM)-grown and organic foods: insights from three US data sets. Fair Trade coffee farms‚ certified by TransFair USA‚ are required to ensure that the coffee was grown using sustainable methods (such as organic farming) and that farmers
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Making Your Own Organic Shampoo Once you have chosen your castile soap base‚ you can add your essential and/or fragrance oils to the mixture. Different oils will affect the hair in different ways depending on what you are looking for in a homemade shampoo. For instance if you are looking to control dandruff and to sooth an itchy scalp‚ then you would add Tea Tree oil and Chamomile to your shampoo base. If you wanted to add extra shine to your hair with a great scent‚ then you would add Lemongrass
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Membrane Transport Christopher Gaita‚ Deija Williams‚ Elisabeth Johnston & Megan Lade University of Phoenix (Online Campus) Amy Sullivan Introduction: Membrane Transport • What is membrane transport • Types – – – – Diffusion Osmosis Active Transport Endocytosis/Exocytosis Photo Courtesy Of: http://hyperphysics.phy-astr.gsu.edu/hbase/biology/celmem.html Osmosis • Example: A semipermeable membrane bag containing a 30% sugar solution is placed in a beaker of pure water. – Diffusion or osmosis
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Cell Membrane Transport The purposes for these experiments is to be able to understand osmosis and its relationship to tonicity of solutions‚ and the transportation of molecules across cell membranes. It’s also used to understand‚ and how temperature affects diffusion. You also learn how to test for presences of starches and sugars in solutions. In the first exercise I will be testing for diffusion through an artificial membranes. This one has forty five steps to it. I will not go into
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Running head: Organic Chemistry Tamanna Ashraf Palm Beach State College Principle of Chemistry Ceravolo‚ Joseph MW 11:00am-12:15pm February 6th‚ 2011 We all are living in a science world. Everything has some kind of reaction going on in our living area. It is just we do not get to see or realize that where n how we having our life much easier than it used to be. In these writing assignments‚ the topic is about the organic chemistry. In organic chemistry‚ we all have different kinds of compounds
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* 2 * Next Funkoos doesn ’t want to be known as that tree-hugging organic company." Organic is great‚ but it ’s not the end-all-‚ be-all‚ according to Stefanie Brychcy‚ head of corporate communications for the organic baby apparel startup. Price and ease-of-use are just as important‚ shesays. Although the "organic message" is growing‚ Director of Operations Sitwat Shah said people still ask‚ "What is organic and why should I buy it?" Chipping away at any preconceived notions is necessary
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Title: Prep of t-Butyl Chloride via SN1 Reaction Purpose: The purpose of this experiment is to synthesize tert-butyl chloride via an SN1 reaction. t-Butyl Chloride was synthesized from t-Butyl Alcohol using hydrochloric acid in separatory funnel; isolation of t-Butyl Chloride was done under distillation conditions. The experiment resulted in 8.29grams of purified compound‚ which is a 66.27 percent yield. Procedure: As per handout with changes Equation: Mechanism: Results: (Scan
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Experiment 1: Solubility of Organic Compounds (Answers to Questions) Q1. State what types of inetmolecular forces are present in solutions formed due to intermolecular attractions between the solute and the solvent. A1. For Water-Soluble Compounds: Acetone – Water: Hydrogen bonding and van der Waals forces Acetone – Diethyl Ether: Dipole – (induced) dipole and van der Waals forces Sucrose – Water: Hydrogen bonding and van der Waals forces Ethyl alcohol – Water: Hydrogen bonding
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Residual solvents Identification and control of the residual solvents (USP 32(467)‚ page 181 Determination by gas chromatography with mass detector and headspace sampler Conditions of the chromatograph Agilent 7890A (LCTG CGMS): * Column DB-624 30m 0.25 mm 1.4µ (CG-2) * Injector temperatura: 160ºC * Flux: 1.0 ml/min * Split: 5:1 * Carrier gas: Helium * Time per test: 30.6 min Conditions of the detector 5975C inert MSD * Data adquisition mode: Scan/SIM * Mass:
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