or volume of the plant cells does not change‚ means there is no net loss or gain of water. Introduction This study shares the results of an effort to understand diffusion and osmosis in general. It focused more into osmosis in plants cell‚ and how to indirectly measure osmolarity in potato tuber tissue. Osmosis is the diffusion specifically of water across a membrane. Diffusion occurs when certain substance‚ such as an ion‚ is more concentrated on one side of membrane. If the membrane allows
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Effect of Osmosis on RBC’S Objectives : 1)Find the difference between three Red Blood Cell’s samples that undergo Osmosis in : a)0.5 % Distant Water solution. b)0.9 Nacl solution. c)10 % Nacl solution. 2)What materials did you use. 3)Define the procedures that the three samples undergo. 4)Give a brief result for your experiment. Materials : Sterilized lancets ; 3 blood samples ; 3 slides ; antiseptic wipes ; bandages ; tooth picks ; 0.5 % d.w solution ; 0.9 % Nacl solution ; 10% Nacl
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CHAPTER 11 Financial Reporting Concepts ASSIGNMENT CLASSIFICATION TABLE Study Objectives Questions Brief Exercises Exercises Problems Set A Problems Set B 1. Explain the importance of having a conceptual framework of accounting‚ and list the components. 1‚ 2 1 3 3 2. Identify and apply the objective of financial reporting and the underlying assumptions used by accountants. 3‚ 4‚ 5 2‚ 3‚ 6 1‚ 2‚ 4‚ 5‚ 6 1‚ 2‚ 4‚ 5 1‚ 2‚ 4‚ 5 3. Describe the fundamental and enhancing
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Consequently‚ osmosis is leveling the concentrations on both sides of the membrane. However‚ the higher the temperature is‚ the higher osmosis will perform within the plant cell. When the molecules are heated‚ they start to move faster‚ causing osmosis to perform faster than at a neutral temperature. Temperature is just one of the many factors that can affect osmosis‚ such as‚ the pressure (the less pressure‚ the molecules will move leisurely
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weigh less due to osmosis. Our null hypothesis was: If the pH level of a solution is either acidic or basic‚ then it will have no effect on the weight. The independent variable was the different solutions of different pH values. The dependent variable was the weight of the potato‚ which was measured in grams. The baseline of this experiment is the weight of the potato when in the milk solution because milk has a neutral pH. The controls in this experiment are that each sample had
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The purpose of the lab was to investigate osmosis‚ which was successfully achieved because there was a change in the potato’s mass which was due to the net movement of water either into the potato cells or out of the potato cells. In the 0.400M solution‚ the potato decreased in mass‚ this was due to the reason that the solution was hypertonic. There was a higher concentration of solute and lower concentration of water in the solution than there was in the potato cells. This led the water to travel
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transport of materials in three semi-permeable membranes: dialysis tubing‚ eggs‚ and onion cells. Background Information 1. Diffusion is the movement of solutes from high to low concentration. Osmosis is the movement of water from low to high concentration. Both refer to movement in/out of a cell‚ but osmosis refers specifically to water. 2. Isotonic‚ hypertonic‚ and hypotonic all refer to the comparison of concentrations of solutes in verses out of the cell. Isotonic is when the concentration in
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The 7 Key Differences Between business-to-business and consumer marketing by Robert W. Bly When asked if he could write an effective direct mail package on a complex electronic control system‚ a well-known direct response copywriter replied‚ “No problem. It doesn’t matter what the product is. You are selling to people. And people are pretty much the same.” He’s wrong. Yes‚ there are similarities. But there are also differences in selling to business and professional
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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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class average‚ there is evidence that osmosis did occur in the bags. The largest change in mass was in the 1.0M sucrose bag the mass went from 12g initially to 14.2g‚ this gained 2.2g‚ an 18.3% change in mass for the group data over the duration of the experiment. The 0.2M bag went from 10.2g to 10.9g a 6.9% change in mass; the 0.4M bag went from 12.1g to 12.2g .83% change in mass; the 0.8M bag went from 10.9g to 12.2g and an 11.9% change in mass. During osmosis water diffuses‚ going from an area
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