Aim To observe and measure the effect of osmosis on the mass of potato using a starch solution. Introduction In order to measure the effect of osmosis‚ eighteen pieces of potato were cut and placed in six groups‚ each group of three pieces cut to weigh as close as possible to one another. For each potato group‚ a test tube was half filled with a starch solution varying in concentration from 0% (water) to 1%. Hypothesis Through osmosis
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Osmosis of a Potato cell. Hypothesis is that the potato in saltwater is going to show that it will break down the cells of the potato. Osmosis is the diffusion of a solvent through a semi-permeable membrane‚ from a solution of low solute concentration to a solution with high solute concentration‚ up a solute concentration gradient. Net movement of solvent is from the less-concentrated to the more-concentreated.‚ which tends to redure the difference in concentrations. This effect can be countered
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This was conducted through four different experiments. The first tested the effect of temperature on enzyme activity. The independent variable in the first experiment was the temperature of the solution of pH 7 buffer‚ potato juice‚ and the enzyme. The independent variable for the second experiment was the pH of the phosphate buffer. The independent variable for the third experiment was the enzyme concentration of the solution‚ and finally the independent variable of the
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Laxapana Batteries PLC Annual Report 2010 / 2011 Our Mission “Our mission is to provide best value energy generating products” To our shareholders - We will continuously improve our manufacturing capabilities and technology as part of our growth strategy and thereby improve profits and return on investment. To our customers - We will provide high quality products that will consistently meet customer expectations. To our employees - We will create a work environment where employees will be
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Aim: What is the effect of changes in sucrose concentrations on the water potential of potato cells? Raw Data: Suscrose concentration (0.00M) Group 1 Group 2 Group 3 Group 4 Change in mass (g) (+/-0.1g) 0.04 0.19 0.10 -0.27 Change in length (mm) (+/- 0.1mm) 0.00 0.00 0.00 0.30 Suscrose concentration (0.10M) Group 1 Group 2 Group 3 Group 4 Change in mass (g) (+/-0.1g) 0.29 0.44 0.22 0.08 Change in length (mm) (+/- 0.1mm) 1.10 0.30 0.30 0.70
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B. Yeats‚ 1921 TEACHER ’S INTRODUCTION Between 1845 and 1850‚ more than a million Irish people starved to death while massive quantities of food were being exported from their country. A half million were evicted from their homes during the potato blight‚ and a million and a half emigrated to America‚ Britain and Australia‚ often on-board rotting‚ overcrowded "coffin ships". This is the story of how that immense tragedy came to pass. The necessary historical and political context for a
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du17.3 Million Filipino Adults Are Current Tobacco Smokers Twenty-eight percent or 17.3 million Filipino adults age 15 years and older are current tobacco smokers‚ according to the results of the 2009 Global Adult Tobacco Survey (GATS). Almost half (48 percent or 14.6 million) of adult males and 9 percent (2.8 million) of adult females are current smokers. Moreover‚ 23 percent of Filipino adults are daily tobacco smokers: 38 percent for males and 7 percent for females. Filipinos mainly smoke
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LEMON BATTERY: A PRACTICAL ALTERNATIVE Thesis Statement: Lemon is a kind of voltaic battery that contains citric acid that could generate LED; digital clocks; calculators; small devices and among others sufficiently like ordinary batteries‚ economically. OUTLINE: I. Basic Information About Lemon Battery A. What Is Battery? B. Definition Of Lemon C. History Of Lemon D. History Of Lemon Battery E. Definition Of Lemon Battery F. Lemon Battery
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How Batteries Work TOPIC: Explanation of how batteries work SPECIFIC PURPOSE: To inform the audience how a battery works on a scientific level THESIS STATEMENT: A battery is essentially a can full of chemicals in which chemical reactions take place to allow for the flow of electrons. Introduction I. Batteries are everywhere. They are in our cell phones‚ our flashlights‚ our cars‚ our laptops. (Attention getter) II. Life as we know it is made possible largely by batteries. III
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BATTERY TECHNOLOGY FOR ELECTRIC CARS AND PORTABLE ELECTRONIC DEVICES (MOBILE/LAPTOPS) Welingkar Institute Of Management‚ Development and Research‚ Bangalore Submitted By: Ajay Parab PGDM-Business Design (2012-14) Introduction: Battery electric cars are becoming more and more attractive with the advancement of new battery technology (Lithium Ion) that have higher power and energy density. The concept of battery electric vehicles is to use charged batteries on board vehicles for propulsion
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