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 at 10% concentration the solution would be a lighter shade of red‚ with 70% concentration being the darkest shade of red. When using the colorimeter‚ the lower concentrations
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the higher the concentration of reducing sugar in the solution tested. If more precipitate has formed‚ there are fewer copper ions remaining in the Benedict’s Reagent‚ therefore‚ the solution will appear less blue. This can be measured using a colorimeter‚ as it is known that the concentration of a substance is proportional to its absorbance of light. Fructose is the sugar found in fruit. It is a monosaccaride‚ and is a reducing sugar because it acts as a reductant in chemical reactions. This can
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the solution using a colorimeter. The higher the reading on colorimeter the more anthocyanin present in the solution To find out the permeability of the beetroot membrane I will firstly cut out cylinders of beetroot using a cork borer‚ I will slice them into a certain width and then place them into distilled water at different temperatures. Using a colorimeter I will measure the anthocyanin that will diffuse into the distilled water‚ the higher the reading of the colorimeter the more anthocyanin
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for dispersion. There is no indication that betalains protect plants from pathogens or herbivores‚ and they also do not absorb UV light. Betalains are also poor pH indicators. In this experiment the betalain will be measured by using a colorimeter. A colorimeter is an instrument which compares the amount of light getting through a solution (Betalain) with the amount which can get through a sample of which is clear (distilled water). A reading is then given of which shows the percentage of absorbance
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The Effect of temperature on beetroot This experiment is designed to investigate the effect of varying temperature (centigrade) on beetroot and its cells. My earlier experiment suggest that as temperature increases the integrity of the beetroot cell membrane will be destroyed and a subsequent release of beetroot pigment will be released into its surrounding milieu(in this case distilled water). In the experiment I will examine if my hypothesis (above) is correct. In order to conduct this experiment
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cuvettes. Put the distilled water into the colorimeter and calibrate it and then put the polluted water into the colorimeter to see the pH value. After that‚ create a filter and pour the polluted water into the filter to clean it. After this is complete‚ take the cleaned water and put it back into a clean cuvette. Then go back to the colorimeter and put the distilled water into the colorimeter and calibrate it and then put the filtered water into the colorimeter to find the
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40°C‚ 50°C‚ 60°C‚ 70°C) • Plastic Beaker (~250cm3) • 2 Boiling Tube Racks • 8 Boiling Tubes • Crushed Ice • 8 Thermometers (one per water bath) • Stopwatch • Distilled Water • Pipette • Cuvette • Colorimeter Method (N.B. – All personal protective equipment must be worn and care must be taken when using the cork borer or Scalpel/knife. All laboratory rules must be followed) Eight cylinders where cut from the Beetroot‚ using a cork
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in sulphuric acid to create the blue solution of copper. We put the blue solution of copper in the colorimeter and measured the absorbance of the solution 3 times then we found the average of the 3 different results we had gotten. We then diluted the blue solution of copper with water and put it into the colorimeter and measured the absorbance 3 times again and got the average again. A colorimeter is a light-sensitive instrument that measures how much colour is absorbed by an object or substance
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determined the concentration of a unknown CuSO4 solution by measuring its absorbance with the colorimeter. With all the calculations we were able to solve the linear regression Equation of absorbance vs. concentration and the alternate method. Materials Vernier LabPro or CBL 2 interface .40 M CuSO4 solution Computer or handheld CuSO4 unknown solution Vernier Colorimeter Pipet pump or pump bulb one cuvette
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Temperature Meter | 5800 | ACS | PH Electrode | 1000 | ACS | Temp. Probe | 650 | ACS | Electrode Stand | 450 | | COLORIMETER | | MT-107 | Microprocessor Photo Colorimeter‚ 8 Filter | 9200 | MT-108 | Deluxe Photo Colorimeter‚8 Filter | 7500 | MT-109 | Digital Hemoglobin Meter | 7000 | MT-110 | Auto Photo Colorimeter | 7200 | MT-111 | Digital Photo Colorimeter | 6200 | | CONDUCTIVITY METER | | MT-112 | Microprocessor Conductivity TDS/Temp. Meter | 12000 | MT-113 | Digital
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