the concentration in the potato cubes‚ the percentage of weight change in potato cubes will be higher (positive). If the concentration of the salt solution is the same as the concentration in the cell‚ there will be no net movement of water through osmosis therefore there will be no percentage of weight change in potato cubes 2) The osmolarity of salt within the potato cubes lie between 0.8% and 1.0%. Thus saying‚ solutions of salt ranging from 0.0%(distilled water) to 0.8% will be hypotonic while the
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Osmosis is the diffusion of water molecules from an area of high concentration of sucrose solution to an area of lower concentration of sucrose solution‚ through a selectively permeable membrane. The water molecules move down a concentration gradient in osmosis. Two diagrams of osmosis are shown in figures 1 and 2. Figure 1 shows the diffusion of water molecules through a selectively permeable membrane from an area of highly concentrated sucrose solution to an area of lower concentrated sucrose solution
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Osmosis in Potato Tissue Experiment Background Information Osmosis can be defined as the movement of water across a semi-permeable membrane from a region of high water concentration to a region of low water concentration. The semi-permeable membrane allows small particles through it but does not allow large particles such as sodium chloride. Osmosis will continue until a state of equilibrium is reached i.e. there is no area with a higher or lower concentration than another area
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In Chicago‚ in the 1950’s‚ black families were confronted with many challenges‚ faced much racial prejudice‚ were typically poor‚ working-class families‚ and were not wanted in white communities. In A Raisin in the Sun‚ the Younger Family is different‚ they are poor‚ but they are able to overcome that fact and fulfill their dreams‚ despite the prejudice that comes with them. Because the Youngers have a strong sense of pride and loyalty their dreams are achieved by prevailing over their challenges
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A Raisin in the Sun is about a black family that lives in a small apartment and is trying to make everything work out. The importance‚ people may think is to show no matter what is just to try and get whatever you aspire to get in life. Beneatha had a dream of being a doctor but it did not come true when the family lost all it’s money. In Lorraine Hansberry’s‚ A Raisin in the Sun‚ Beneatha is described as a beautiful woman. (She is about twenty‚ as slim and intense as her brother. She is not as
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Ba‚ centers around recently widowed‚ Ramatoulaye in the form of a letter to her friend Aissatou. Ramatoulaye discusses her emotional struggle when‚ the traditions of polygamy allowed her husband to marry her daughters friend. Another good read‚ A Raisin in the Sun‚ is about the Youngers family who are going through the daily struggles of an African-American family in the 1950’s. The play addresses the money problems Walter Younger goes through and‚ the struggle of being “the man of the house.” The
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A Raisin in the Sun is a play written by Lorraine Hansberry in 1959. This play is about a lower class African American family dealing with their living conditions on the Southside of Chicago. The title of the play was inspired by the poem A Dream Deferred by Langston Hughes. Hughes’ poem describes the differing paths people take in life. This idea is displayed throughout the play as every character has different aspirations in life and will do whatever they can to accomplish their goals. For this
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Introduction In Diffusion‚ Dialysis & Osmosis lab‚ we discovered that we were going to observe and understand the conditions under which diffusion‚ dialysis‚ and osmosis occur. Then we constructed models of diffusion‚ dialysis‚ and osmosis. We predicted that the direction of change would be from the membrane to the beaker. We understood how these processes affected the selectivity of the cell membrane. The second part of the lab was dealing with dialysis. In this part we studied starch and sodium
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The purpose of this assignment is to demonstrate effective counselling skills by participating in a role play. I will be counselling a client for ten minutes‚ exploring the issues she is facing through the use of a vast amount of verbal and non-verbal communication. The scenario in which I will be basing my role play on is; a young woman who makes herself sick after she has eaten. She knows it is not a good idea‚ but she likes the sense of control it gives her. Due to being abused as a child by her
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Demonstrate understanding of customer service. QCUS3-001 1) Describe how their organisations service offer meets customer expectations. In this particular type of industry it is impossible to offer some “service offers” that other companies may be able to offer. We can’t offer big sales‚ buy one get one free and other types of promotions that companies follow. The cost of materials keeps rising and in order to keep competitive we do only sell work at a fair price‚ not like some other
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