Ben Zaré 9MK Biology Investigation - Osmosis in Potato Cells 9/7/04 Section 1 Planning Aim What is the aim of your experiment? What do you want to find out? The aim of this experiment is to investigate how potato tissue changes when placed in sucrose solution of different concentrations. Therefore‚ I want to find out if and how osmosis differs‚ when the concentration is changed. Variables What is the variable you are going to change in the experiment?
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Analysis The trend that my graph and results show is that when the potato was placed in a solution that had a higher concentration than the chip itself‚ the potato lost weight (0.4‚ 0.6‚ 0.8 and 1.0 molars). In the same way when the potato chip was placed in a solution that had a lower concentration than itself‚ the potato chip gained weight (0.0 and 0.2 molars). For my results I calculated the percentage gain/loss in weight using the following formulae: Average change in weight/weight at
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‘Romeo and Juliet/Catrin/Follower’ Controlled Assessment: Examining Shakespeare’s ideologies on parental influence and the impact on modern/Elizabethan audiences: Examine the way Shakespeare presents the relationship between Juliet and her parents. By Tiffanie Gould‚ 10x1 The iconic tragedy written by the world’s most honoured writer William Shakespeare‚ ‘Romeo and Juliet’ is a title the world is familiar with. Its impact on modern society is impeccable‚ whether related to love‚ tragedy or both
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conditions of communist countries. The static number of deaths due to communism is approximately 94 million. Compared to the deaths of the holocaust which would stand at 11 million. 94 million is a to high number‚ when dealing with innocent lives. The Potato Eaters‚ a painting by Vincent Van Gogh‚ a novel by George Orwell published in 1954‚ and “Dog‚” a 1977 song performed by Pink Floyd and written by David Gilmour explore the idea that communists countries have harsh conditions that will be apart of
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Effect of Osmosis on Potato Aim: To investigate the effect osmosis has on potato pieces that are placed in different concentrations of sugar solutions in water. Hypothesis: I believe that the more saturated the solution is the lighter the potato will be‚ and the potato in the clear water will weigh more after being left in the solution over a 24 hour period. This is because the cell membranes in the potato act as semi permeable membranes (meaning that they only allow certain molecules through)
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pp. [8] M. M. Tentzeris and Y. Kawahara‚ “Novel energy harvesting technologies for ICT applications‚” in IEEE Int. Symp. Appl. Internet‚ 2008‚ pp. Jun. 2010‚ pp. 1–9. Sensors‚ Veldhoven‚ The Netherlands‚ 2005. IEEE Globecom‚ Dec. 2010‚ pp. 1–5. Quality (ICREPQ’10)‚ Mar. 2010‚ pp. 486–495.
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Food Inc This movie is a documentary of how foods are being produced and it helped us show the basis of how food is packaged and sold locally in our grocery stores. This movie reveals what our industry has been trying so desperately to keep from us. We have a right to know what we put in our bodies. We have a right to know whether the food we’re eating has been genetically modified‚ or where it comes from. After watching the film Food‚ Inc. I gain knowledge on parts of our food industry that was
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Osmosis in Potato Tubers Andrew Dickson Background When a plant cell is bathed in a solution of the same concentration (isotonic) as its intracellular environment‚ its mass and volume remain the same. This is because water enters and leaves the cells at the same rate. There is no net loss or gain of water by osmosis. Samples of cells can be placed in a range of solutions of different concentration. The cells will gain water by osmosis when placed in solutions which are more dilute (hypotonic)
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Title: Osmosis and water potential Aim of the experiment: Finding the water potential of potato. Biological principles: Independent variable: concentration of the solution. Dependent variable: percentage changed in weight of the potato strips. Controlled variable: size of the potato strips‚ it can be controlled by cutting the length of the strips. Procedure: Table 1. Concentration of sucrose solution table Concentration/ M | Sucrose Solution/ ml | Distilled
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Frito-Lays is a nationally recognized leader in the manufacture and marketing of salty snack foods with 33% market share in the U.S. Frito-Lay has a highly profitable dip product line with $87 million sales in 1985. Dips are most frequently used with salty snacks whereas account for 67% of total dip sales. Rest of dip sales (33%) are linked to vegetable usage. But the market for dips is highly fragmented and difficult to measure. In late 1986‚ management team of Frito-Lays wants to complete their
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