"Sucrose" Essays and Research Papers

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    Enzyme and Metal Ions

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    Materials and apparatus: 10mM lead (II) nitrate 10mM silver nitrate 50g/L sucrose solution 0.03g/L invertase solution Benedict’s solution 6 test tubes Measuring cylinder 1 beaker Bunsen Burner Tripod Wire gauze Heat-proof mat � Procedures Silver nitrate 0.5mL of silver nitrate solution is added to 1mL of sucrose solution and the test tube is labeled as A. 0.5mL of distilled water is added to 1mL of sucrose

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    Co2 In Yeast Solutions

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    Production of Yeast in Different Sucrose Solutions Internal Assessment Azayleah Delgado October 27‚ 2013 Period 2 Carbon Dioxide Production of Yeast in Different Sucrose Concentrations Raw Data Tables: Sucrose concentration (%) Volume of CO2 captured (mL) 0 minutes 5 minutes 10 minutes 0 4.5 4.5 5.0 2.5 4.0 4.5 4.5 5 4.0 4.0 4.5 7.5 4.0 4.5 4.5 10 3 3.5 3.5 Table 1: Trail 1 of Volume of CO2 captured by sucrose concentration Sucrose concentration (%) Volume

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    Potato Osmosis Lab

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    concentrations of sucrose. The results supported my hypothesis because for the 0.0 sucrose concentration the average percent change in mass was 16.9%. For the 0.2 concentration the percent change was 3.59%. For the 0.4 concentration the percent change was -15.3%. For the 0.6 concentration the percent change was -27.1%. For the 0.8 concentration the percent change was -23.2%. For the 1 concentration the percent change was -15.4%. The reason for the change in mass is the process of osmosis. When the sucrose concentration

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    a specific concentration of liquid and then clamped the other end. One with tap water‚ one with 20% sucrose‚ one with 40% sucrose‚ one with 60% sucrose and another with tap water. We then filled up the beakers with the liquid required‚ just enough so that it would cover the dialysis tubes when put in there. Beakers 1 through 4 were filled with tap water‚ while beaker 5 was filled with 40% sucrose. After both the beakers and the tubes were full we gently blotted the filled tubes to remove any access

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    Investigating the Difference in Isotonic Point in Sweet and White Potato Research Aim: To observe whether equal sized white potato or sweet potato cores reached the isotonic point in the same concentration of sucrose solution. Introduction: Osmosis is diffusion of water from areas of high water potential to areas of low water potential. It does not require an input of energy. Plants use osmosis to transport minerals from their roots to their leaves‚ and to take in water in the soil. Because the

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    found in plants. It acts as a catalyst for the hydrolysis of sucrose. Sucrose is a disaccharide composed of glucose and fructose linked by a glycosidic bond. When this bond is cleaved in a hydrolysis reaction‚  an equal amount of glucose and fructose. Invertase is a significant enzyme because glucose is an important product of photosynthesis. Invertase is also used in the confectionery industry where fructose is preferred over sucrose because it is sweeter and does not crystallize  easily. Enzymes

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    Osmosis: Potato Tuber Lab

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    of diffusion takes place when the molecules in high concentration are too large to move through the membrane. Three factors that determine cell membrane permeability are shape‚ size‚ and polarity. For this experiment‚ it must be kept in mind that sucrose is not permeable to the cell membrane‚ for it is too large to pass through. The cell membrane functions to protect‚ separate‚ and regulate what goes in and out of a cell. It also allows cells to control their internal chemical environment and the

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    Osmosis and Diffusion

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    Aim: the aim of this experiment is to find out if osmosis and diffusion will occur in an egg. Scope: The scope of this experiment is to investigate if osmosis and diffusion will occur to an egg once it’s put in vinegar for 2-3 days and then put in sucrose solution of different amounts (10%‚ 20%‚ 30% and 40%). 1.4 Hypothesis: My hypothesis relating to this experiment is that the eggs will gain weight and osmosis will occur through the semi-permeable membrane. 1.5 My idea about osmosis and diffusion

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    1B: Osmosis The materials used include 25-mL of these solutions: distilled water‚ 0.2M sucrose‚ 0.4M sucrose‚ 0.6M sucrose‚ 0.8M sucrose‚ and 1.0M sucrose‚ scissors‚ string‚ a balance‚ six 250-mL cups‚ and six 30cm strips of dialysis tubing. EXERCISE 1C: Water Potential The materials that were used included 50mL of distilled water‚ 0.2M sucrose‚ 0.4M sucrose‚ 0.6M sucrose‚ 0.8M sucrose‚ and 1.0M sucrose‚ six 250mL cups with lids‚ 4 potato cores for each cup‚ a balance‚ and paper towel. EXERCISE

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    carbon dioxide are produced. In this investigation‚ the rate of carbon dioxide production (cellular respiration) of yeast using different sugars and one artificial sugar will be measured. The natural sugars used in this investigation will be sucrose (table sugar) and lactose (in milk). The artificial sugar that will be used is aspartame (equal). The rate of respiration between the natural sugars will be compared to that of the artificial sugar. The molarity of the sugar will remain constant at

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