Osmosis Lab Report

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Lesego Tacia Chiloane 216041082 03 March 2016 Influence Of concentration on rate of osmosis INTRODUCTION The aim of this experiment is to observe how the concentration of constituents in a solution influence the rate of osmosis. Osmosis is a type of diffusion where a substance in a solution moves through a semipermeable membrane from a low concentration to a high concentration. Only the solvent in the solution is able to move across the semipermeable membrane, not the solutes (Atkins et al., 2011). In cells, osmosis refers to when water diffuses in this way because many cellular metabolic processes take place in aqueous conditions where water is acting as a solvent (Alberts et al., 2008). Osmosis results in an equal…show more content…
The reason for this is because hypertonic solutions have a greater water potential than hypotonic solution. That is, hypertonic solutions have a greater ability to take up water than hypotonic solutions. In this experiment, the sugar solutions were hypertonic when compared to the distilled water inside the beaker because they had greater concentration of solutes (sugar). Therefore, the concentration gradient of water was moving in the direction of the funnel, away from the glass beaker. This is what resulted in an increase in the volume of solution inside the funnel. CONCLUSION It may be concluded that the rate of osmosis between two solutions of different solute concentrations, increases as the tonicity between the two solutions increases. BIBLIOGRAPHY Alberts B, Johnson A, Lewis J, Raff M, Roberts K, Walter P. Molecular biology of the cell. 5th. New York: Garland Science, Taylor & Francis Group,

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