Control process Beetroot samples: The same size beetroots will be used throughout the experiment this is to ensure that the impact of the temperature on every sample will stay the same‚ i.e. if having a bigger beetroot sample less pigments will be released into the test tube at lower temperature‚ or having a smaller beetroot sample more pigment will be released into the test tube. This error will change the results of the experiment at large. Therefore it is important to insure the sample sizes
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The effect of alcohol concentration on the cell membrane Abstract: In this experiment I found out that as the concentration of the alcohol was increased so did the colour intensity of the solution. This is because the higher concentration of ethanol‚ results in more damage done to the cell membrane‚ resulting in leakage of red pigment from the cell. If the membrane is damaged more‚ more red pigment will leak out of the membrane and into the ethanol. Hypothesis: The higher the concentration
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investigated the effect of different temperatures on beetroot cell membranes (a type of plant cell). Through this experiment‚ the process of diffusion and osmosis was in action. Various temperatures ranging from low temperatures to high temperatures such as -5⁰C‚ 5⁰C‚ 30⁰C‚ 50⁰C and 80⁰C were used to investigate the temperature effects on beetroot cell membranes. The hypothesis predicted that the higher the temperature the darker the beetroot substance and the lower the temperature the least colour
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When a beetroot cell is exposed to various kinds of temperatures‚ its plasma membrane is affected and may change in structure resulting in the leaking of betacyanin. If the temperature changes‚ then I would expect to observe that there would be a change in the concentration of betacyanin that has leaked from a beetroot cell. In specific‚ at high temperatures‚ the phospholipids that make up the plasma membrane of the beet root cell become progressively more destabilized causing them to transform into
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To find out how the permeability of a beetroot membrane cell is affected by ethanol. To do this we will investigate different concentrations of alcohol (10-70%) and measure the absorbance using a colorimeter to show us how much juice has leaked out. Hypothesis I predict that as the concentration of ethanol goes up‚ the permeability will increase as the ethanol will slowly dissolve more phospholipids (lipid bilayer) and so more anthocyanin (the beetroot juice) will leak out of the membrane. So
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brane using the beet root model system by observing the effects of solvents on the beet root. The beet root was placed in seven solvents to see if the beetroot would leak any of its color to see if the membrane was damaged and by
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temperature on the membrane permeability of beetroot. Since I was unfamiliar with this experiment‚ I first conducted a preliminary test. I considered my preliminary test as my trial for this experiment. My Hypothesis for this experiment was to found out the amount of pigment loss of beetroot when exposed to varying temperatures. Betalain pigment found in beetroot My method for this experiment is:- * Use a cork borer to cut about 3 cores of fresh beetroot approximately 8mm in length. * Place them
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Michael Trusov‚ Randolph E. Bucklin‚ & Koen Pauwels Effects of Word-of-Mouth Versus Traditional Marketing: Findings from an Internet Social Networking Site The authors study the effect of word-of-mouth (WOM) marketing on member growth at an Internet social networking site and compare it with traditional marketing vehicles. Because social network sites record the electronic invitations from existing members‚ outbound WOM can be precisely tracked. Along with traditional marketing‚ WOM can then
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Free radicals are often believed to trigger cancer cells. Lycopene is notable in its ability to aid the fight against rectal and colon cancer‚ as well as prostate‚ breast‚ mouth and cancer of the pancreas. Cooked and canned/pureed tomatoes are said to be especially concentrated in lycopene Soya bean products such as tofu include phytoestrogens and isoflavones‚ which when absorbed in sensible amounts (no more than four or five
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2012 Summer Reading Assignment: “Big Mouth‚ Ugly Girl” I. Determine the Setting 1. Most of the action in the story‚ “Big Mouth & Ugly Girl” takes place inside Rocky River High School. 2. At a pivotal point in the story‚ Matt considers suicide‚ and the story takes us to the Nature Preserve which Matt usually finds to be a peaceful and enjoyable place to be with his dog. But‚ in the climax of the story‚ the setting changes to the wintry and icy nature preserve. The preserve proves
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