pressure exerted on either side of the semi-permeable membrane. A potato (Solanum Tuberosum) contains 92% water‚ which is an osmotically active component. The precise osmotic potential of sweet potatoes is however unknown. The osmotic potential of sucrose is know to be at 20 oC‚ the osmotic potential of sucrose is 2.436 MPa2. The rate of osmosis will be calculated by measuring the percentage change in mass of a piece of potato‚ that has been submerged in a specific concentration of sucrose over
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Q.1: What appears to happen to the average levels of duplication as you look across the columns from left to right? When we look across the columns from left to right‚ the average levels of duplication reduces. The purchase duplication table has been rearranged by the size of the brand‚ with rows and columns in descending brand penetration level. Average duplications of each brand are calculated. This clearly shows that the proportion of the buyers of one brand who also bought another particular
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Potato Lab Report: Effects of Sucrose Solutions on Potato Cells and Water Potential Abstract: Osmosis is a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one‚ thus equalizing the concentrations on each side of the membrane. In this experiment‚ we learn about Osmosis and Diffusion through potato cores in different concentration of sucrose
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small molecules to pass through - the larger the organism‚ the smaller the surface area ratio.Therefore if ratio is too small it take molecules much more longer to enter cell. Prediction For the experiment‚ I expect to see different effects on potato samples depending on different water concentration: · After putting in dilute solution I expect their mass to increase‚ as effect of taking up water by osmosis - cell should become ‘turgid’. · Concentrated glucose solution - mass of potatoes samples
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The effect of Sodium Chloride (NaCl) salt concentration on osmosis in potato cells The movement of substances in plant cells involves many processes and systems‚ all of which may affect the plant bio-chemically and physically‚ and one of these processes is osmosis. Osmosis is the flow of water through a semi-permeable membrane of a cell moving from an area of higher water potential to an area of lower water potential until reaching equilibrium known as isotonic. Before reaching the point of being
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Osmosis Aim: To determine the concentration of cell sap in a potato cell. Osmosis is the movement of water through a semi-permeable membrane. It starts from a weak solution and becomes a more stronger solution until the concentrations on both sides are equal. To investigate the range of solutions needed to find the point at which the surrounding solution is the same as the cell sap in the vacuole.
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the same for potato cores placed in varying concentrations of solutes of NaCl‚ glucose‚ and sucrose. This experiment was designed to test these predictions and compare them to data gathered course wide. We found that the mean water potentials were all within 0.26 bars of each other‚ and that the zero weight change osmolalities were all within 0.035 mols of each other. This supported Van’t Hoff’s predictions that water potentials and osmolalities would be the same. We had to collect potato core samples
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Factors affecting the movement of water through osmosis Introduction In this I will be investigating what effects the movement of water through osmosis. Osmosis is the diffusion of water. It is the process in which fluids pass through a partially-permeable membrane. It is the movement of water from high water concentration to low water concentration. Plant cells react to osmosis by hypertonic‚ isotonic and hypotonic. Keywords Hypertonic – is when the water outside of the cell is lower than
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AT1- Osmosis In Potatoes Aim: Investigate the movement of osmosis through a selectively permeable membrane‚ in this case potato. Introduction: Osmosis is the movement of water through a semi permeable membrane‚ separating solutions of different concentrations. The water passes from a region of high concentration to a region of low concentration‚ until the two concentrations are equal in concentrations of water. Many cell membranes behave as semi permeable membranes‚ and osmosis
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Hypothesis The more hypertonic potato cores are to sucrose solution‚ the more weight potato cores gain. On the other hand‚ potato cores will decrease in weight when it is hypotonic to sucrose solution. Variables: Dependent: The final mass of the potato cores Independent: Concentration of sucrose Controlled: Size of potato‚ time spent in solution‚ amount of solution Method for Collecting Data: We decided to do a range of about 4.84g per piece of potato in each concentration of sucrose
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