"Osmosis in glucose solution in red blood cell" Essays and Research Papers

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    Osmosis Lab

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    The Osmosis Lab SHS Lacrosse Monster #2 Dates performed: 10/10/11 and 10/11/11 Introduction: The purpose of the laboratory investigation was to observe the diffusion of water across a semi-permeable membrane. In this lab‚ dialysis tubing was used to represent the semi-permeable cell membrane. Three dialysis tubes were prepared with 5% sucrose solution and were soaked in solutions of different concentrations. The diffusion of water across a semi-permeable membrane is called osmosis. When

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    Marker Color Prediction - Alcohol Prediction - Salt Solution Red 30mm 18mm Orange 35mm 21mm Green 38mm 26mm purple 40mm 25mm Marker Color Actual Results - Alcohol Actual Results - Salt Solution Red 50mm 23mm Orange 50mm 41mm Green 26mm 43mm purple 43mm 29mm I saw that the water actually rose faster than the alcohol did through the paper slip. Discussion and Conclusion: A comparison of how each solution (salt water and alcohol) separated the pigments from

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    Cell Phone Problem Solution Essay A serious problem has arisen that desperately needs to be solved. Students have been constantly using their cell phones during class and causing distractions to the learning environment. As a result‚ the principal is ready to ban all cell phones from school. Although this might solve the problem‚ it would alienate and irritate the student body. As it is‚ students are already distracted by cell phone misuse in the classroom. Teachers have found that their classrooms

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    osmolarity point of potato cells‚ where it is investigated how osmosis changes the weight of the potato cells‚ measured by the percentage change between the initial and final mass of the potato? Independent Variable: Increasing sucrose concentrations Dependant Variable: Mean percentage change in mass of potato cells All cells have a protective barrier‚ one which selectively allows substances to enter and exit the cell. This is known as a cell membrane. Some cells are semi-permeable‚ which means

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    Osmosis Lab Report

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    concentration. Osmosis is a special kind of diffusion where water moves through a selectively permeable membrane (a membrane that only allows certain molecules to diffuse). Diffusion or osmosis occurs until dynamic equilibrium is reached‚ or has been reached. When equilibrium is reached‚ it means that the concentrations in both areas are equal and no new movement will occur from one area to another. This is where the terms like isotonic‚ hypertonic‚ and hypotonic come into play. When cells retain their

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    Osmosis and Potato Chips

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    Osmosis is the movement of water from an area of high concentration to an area of low concentration across a semi permeable membrane. An osmotic system is established when a semi-permeable membrane is placed between two solutions. In this biological systems context‚ osmosis is the exchange of water between the potato cell and the surrounding medium of varying sucrose concentrated solutions‚ with the plasma membrane being the semi- permeable membrane. Because water molecules have kinetic energy‚ they

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    Yeast Osmosis Lab

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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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    Blood

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    Functions of Blood * Blood is pumped by the heart through blood vessels‚ which extend throughout the body. * Blood helps to maintain homeostasis in several ways. 1. Transport of gases‚ nutrients‚ and waste products. * Oxygen enters blood in the lungs and is carried to cells. * Carbon dioxide‚ produced by cells‚ is carried in the blood to the lungs‚ from which it is expelled. * Ingested nutrients‚ ions‚ and water are transported by the blood from the digestive tract to cells‚ and

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    Osmosis Data Analysis

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    reduce. Plant cells always have a strong cell wall surrounding them. When the take up water by osmosis they start to swell‚ but the cell wall stops them from bursting. When they are put in dilute solutions‚ plant cells turn out to be “turgid” (swollen and hard). When the pressure inside the cell increases; No more water can’t enter the cell because the internal pressure of the cell is really high. “When plant cells are placed in concentrated sugar solutions they lose water by osmosis and they become

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    Osmosis and Plasmolysis

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    Osmosis and Plasmolysis Problem: What is the effect of Osmosis on a chicken egg? What is the effect of different solutions with various concentrations on plant cells? Hypothesis: 1. In an animal cell in a hypertonic solution the egg will swell‚ in a hypotonic solution the egg will swell. 2. In a plant cell in a hypertonic solution it will shrink‚ and in a hypotonic solution it will swell. Methodology: Part 1. A chicken egg is consecutively

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