Introduction: To determine the biological changes that occur to potato cores over a period of time in different solutions of sucrose and to relate these changes to the phenomenon of osmosis. Method: We soaked several discs of potato cuted using a cork borer with around 1 centimeter of diameter and 2 milimeters of lenght into sucrose solutions with a different range of concentrations from 0 to 1.0M. Then we weighed all the potato cylinders on an electronic balance
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saline solution was added into the baggie‚ it was discovered that a small portion of the saline solution would leave the bag. In the baggie that has 0.2 percent concentration of sucrose‚ it’s initial mass was 20.18 grams‚ after spending a night‚ in a beaker of water‚ a small portion of the 0.2 percent concentration of sucrose escaped‚ and the final mass decreased to 18.73 grams. There was a 7.19 percent decrease
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EQuipment * salt * table sugar (sucrose) * vinegar * water ( distilled) * spoon * gram scale * 100 mL graduated cylinder * 10 mL graduated cylinder * Ear buds * cup * paper towels * notebook & pen METHOD - The solutions should be taste by more than 1 person for more accurate results. - Make a data table in your notebook like the one below. Substances | 10% | 5% | 1% | 0.1% | Table sugar (sucrose) | | | | | Salt | | | | | Vinegar
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after 10‚ 20 and 1440 minutes. 12) Record results in the chart. Observations and Calculations: Depth of CO2 bubbles Chart: Sucrose Concentration 0 minutes 10 minutes 20 minutes 1440 minutes 0% (plain water) 0 1 mm 0.5 mm 0 1% 0 0 0 0 5% 0 1.5 mm 2 mm 0 10% 0 2 mm 1 mm 0.5 mm Balloon Diameter Chart: Sucrose Concentration 0 minutes 10 minutes 20 minutes 1440 minutes 0% (plain water) 0 0 5 mm 13 mm 1% 0 15 mm 18 mm 14 mm 5% 0 10 mm
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Intro: Carbohydrate‚ any of a large group of compounds in which hydrogen and oxygen‚ in the proportions in which they exist in water‚ are combined with carbon; the formula of most of these compounds may be expressed as Cn(H2O)n. Structurally‚ however‚ these compounds are not hydrates of carbon‚ as the formula would seem to indicate. Carbohydrates‚ as a class‚ are the most abundant organic compounds found in nature. They are produced by green plants and by bacteria using the process known as photosynthesis
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strips. The dialysis tubing has a 12‚000 molecular weight cutoff and diameters of 4.8 angstroms. Sucrose has a weight of 342 and solution of 9.3 angstroms. We also need distilled water‚ And five 100mL beakers. Start the lab by labeling the beakers 1 through 5‚ and fill with 4 tap water and one 40% sucrose. Then make up five different solution:2 tap water‚ 20% sucrose‚ 40% sucrose‚ and 60% sucrose. Soak the dialysis tubing and clamp one end of each tube. Pour 10mL of each solution into bags and
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derived from‚ plants and animals. Materials/ Apparatus: Bunsen burner‚ 3 test tubes‚ test tube holder‚ dropper‚ red litmus paper‚ albumin (cystine)‚ sugar (sucrose)‚ urea‚ soda lime‚ 1% sodium hydroxide‚ hydrochloric acid‚ 5% lead acetate Procedure A: Testing for Carbon‚ Hydrogen and Oxygen 1. 1g of sugar (sucrose) was placed in a dry test tube. 2. The test tube was heated in an inclined position. 3. Observations were recorded. 4. The test
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Introduction: Saccharomyces cerevisiae‚ commonly known as baker’s yeast‚ is an key ingredient used mainly when baking bread or making alcoholic beverages. The main role of the yeast is to convert the sucrose into carbon dioxide (CO2) and ethanol. For example‚ when baking bread‚ the yeast ferments the sucrose within the dough and so CO2 and ethanol is released‚ causing the bread to rise and expand. It does this using enzymesAlso‚ during this fermentation process‚ because CO2 is released‚ it starts to form
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silver Starch iodine test: blue-black 3. Identify each of the samples in Part 1 as monosaccharide‚ disaccharide or polysaccharide. Water = not a saccharide Glucose = monosaccharide Fructose = monosaccharide Galactose = monosaccharide Sucrose = disaccharide Lactose = disaccharide Starch = polysaccharide Honey = primarily monosaccharides with some disaccharide Saccharine = not a saccharide Nutrasweet = not a saccharide Part 1: Benedict’s Test Procedure Place ten drops of
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14.69 | 1 psia‚ pounds per square inch absolute | 6.895 kPa | 1 in | 2.54 x 10-2 m | 1 Pa | 1 N/m2 | 1 cp‚ centipois | 10-3 Pa∙s | 2. The sugar solution is prepared by dissolving 10 kg of sucrose in 90 kg of water. The density of the solution is 1040 kg/m3. Molecular Weight of Sucrose: 342.30 g/mol‚ Water: 18 g/mol. Determine the following‚ f. Concentration‚ weight per unit weight‚ Ans: 0.1 kg solute/kg solvent g. Concentration‚ weight per unit volume‚ Ans: 104 kg solute/m3
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