Tenen Lab: Thursday (3-6 pm) OSMOSIS LAB REPORT INTRODUCTION Osmosis is a special type of diffusion where water molecules move down a concentration gradient across a cell membrane. The solute (dissolved substance) concentration affects the rate of osmosis causing it either to speed the process up or slow it down. Based on this‚ how does different concentrations of sucrose affect the rate of osmosis? If sucrose concentration increases in the selectivity-permeable baggies‚ then the rate of osmosis
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1970s‚ high fructose corn syrup has been widely adopted into America’s food and beverage industry. Because of high fructose corn syrup’s similarity to table sugar‚ it has served as a substitution for table sugar in America’s diet. Unlike table sugar‚ high fructose corn syrup is a liquid substance. Being a liquid‚ high fructose corn syrup has been able to manage an array of food’s textures and freshness. High fructose corn syrup seems to be the optimal alternative to table sugar‚ however there is
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Research Essay 30 November 2010 High Fructose Corn Syrup and Obesity High fructose corn syrup (HFCS) is one of the major caloric sweeteners used in the food industry today. It is a sweetener that contain fructose and all provide 4 kcal per gram (Suzan‚ 620). It is relatively inexpensive to produce‚ so the food industry sees HFCS an easy way to make products less expensive. HFCS is a kind of corn sugar; it is nearly identical to sucrose (table sugar)‚ which is made up of 50 percent glucose
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High fructose corn syrup is a well-known food additive that is listed as a primary ingredient in most food products. It is very common is most of the population’s daily diet and it is ordinary to find it in our foods. People are constantly advised to minimize the consumption of it because of the variety of negative health effects it causes from in-taking too much of this factor. But what really is high fructose corn syrup? What foods is it found in? Is it really as unhealthy as it is claimed to be
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Osmosis Lab Report by Evan Gerber Claire Cambron First Lab Report Wednesday 10:30am February 20‚ 2013 Theresa Gburek Abstract The major objective of the experiment was to test the effect of the concentration gradient on the diffusion rate. It was hypothesized that the greater the stronger the concentration gradient‚ the faster the rate of diffusion would be. To test this‚ dialysis tubes were submerged in different concentration fructose solutions. We weighed the tubes at specific
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Osmosis is the movement of water across a membrane. It always navigates to the area of the membrane with a higher solute concentration. We take a closer look at the effects of osmosis in this lab through the examination of red blood cells (sheep)‚ plant cells (elodea)‚ and active transport in yeast. Under the microscope‚ we can determine the effects on plant and animal cells exposed to hypotonic‚ hypertonic‚ and isotonic sodium chloride solutions. Plant cells have a cell wall; however‚ animal cells
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The effect of osmosis on artificial cells with different concentrations of sucrose Alex McRae Biology 120-902 Grand Valley State University 1 Campus Drive Allendale‚ MI 49401 mcraeal@mail.gvsu.edu Abstract In this study‚ we tested the validity of osmosis in artificial animal cells. Osmosis is the diffusion of free water across a membrane. The purpose of the study was to calculate the rate of osmosis in artificial cells containing different
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Osmosis Lab Introduction: In order for cells to interact with their environment‚ molecules must be able to move through the cell membrane. Movement within the cell occurs by diffusion. Molecules move through the cell membrane by osmosis. Diffusion is the movement of molecules from a region of higher concentration to a region of lower concentration. This happens because of random molecular motion. Molecules move around randomly until there is an even mixture throughout cell and mixture. The overall
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Obesity‚ Diabetes and High Fructose Corn Syrup Sallie Calder QBT 1 October 17‚ 2013 Obesity‚ Diabetes and High Fructose Corn Syrup Thesis Statement: High fructose corn syrup‚(HFC) needs to be eliminated as a common food additive‚ it is one main culprit contributing to obesity and the resultant rise in type 2 diabetes in the United States. High fructose corn syrup (HFC) is now shown to have a direct correlation to the increase in obesity‚ and resultant rise in type
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Where as the active transport requires energy from the molecule to be moved. oFacilitated diffusion can only move in one direction from high concentration to low concentration‚ which is with the gradient. Where the active transport can move from both low concentrations to high concentrations‚ therefore it can move against the gradient where as the facilitated diffusion can not. The process of active transportation is when a molecule work together with the active side of a protein
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