Exploration How do increasing sucrose concentrations of 0.0 mol dm3‚ 0.2 mol dm3‚ 0.4 mol dm3‚ 0.6 mol dm3 and 0.8 mol dm3 affect the osmolarity point of potato cells‚ where it is investigated how osmosis changes the weight of the potato cells‚ measured by the percentage change between the initial and final mass of the potato? Independent Variable: Increasing sucrose concentrations Dependant Variable: Mean percentage change in mass of potato cells All cells have a protective barrier‚ one which
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acetanilide behind. Experimental: For the separation of sucrose‚ we weighed out 3.048g of Panacetin onto a filter‚ and 50 mL of dichloromethane in a graduated cylinder. Then we transferred both the panacetin and dichloromethane into an Erlenmeyer flask and stirred it until the panacetin was dissolved. We let it dry by gravity and set it aside to dry. The filter paper weighed about 1.320g and sucrose weighed out at 1.028g. Sucrose also ended up on the outside rim of the filter paper. We then
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The next two questions refer to the diagrams below representing an organelle from a cell. Question3: The organelle in the diagram is: a) The nucleus of a cell b) A Mitochondria c) Part of the cell membrane d) A golgi body Question 4: The function of this organelle is to: a) Control the metabolism of the cell b) Modify proteins by adding a glycoprotein c) Synthesis proteins d) Package molecules into vesicles before secreting them from
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organic compound like sucrose‚ Ba (OH) 2 for fermentation process‚ and use simple distillation method to purification from the fermentation mixture. Abstract and Theory: There are many techniques that are used to purify liquid. The one that is going to use for this lab is simple distillation. It is a process of which separating a mixture based on the tendency of the mixture to vaporize into a boiling liquid. For this particular experiment‚ a disaccharide carbohydrate sugar like sucrose will mix with yeast
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Examining Diffusion and Osmosis Introduction: Purpose: 1. To simulate and observe the diffusion of solutes and the osmosis of water through a semipermeable membrane through color change and sugar tests. 2. To speculate osmosis occurring in dialysis bags and potato cores by comparing percentage change in masses. Background information: Molecules are always in random‚ constant movement due to their kinetic energy. This causes the molecules of a cell to move around and bump into each other
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glucuranolactone‚ pyridoxine HCL Sugar: sucrose‚ glucose Vitamin: niacin‚ D-pantothenol‚ vitamin B12 Energy: caffeine Salt: sodium citrate‚ Dye: colors Sobe Adrenaline Rush: Amino acid: taurine‚ Acid: citric acid‚ ascorbic acid‚ pyridoxine hydrochloride Sugar: high fructose corn syrup‚ ‚ Vitamin: monopotassium phosphate‚ beta-carotine‚ folic acid‚ Energy: caffeine‚ Siberian ginseng‚ Salt: sodium citrate‚ Dye: caramel color Impulse: Amino acid: taurine Sugar: sucrose Vitamin: niacinimide‚ C‚
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concentration to an area of lower concentration‚ through a semipermeable membrane. We put the potatoes in different solutions with a different amount of sucrose in each solution‚ starting from 0.0 to 0.6. My hypothesis was that in from the 0.0 to 0.3 the weight of the potatoes will shrink and from 0.4 to 0.6 the potatoes will grow. If the potatoes absorb the sucrose and gain weight then they are hypotonic. But if the potatoes shrink then they are hypertonic. If they don’t change in size at all they are isotonic
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Materials and Methods: Dialysis tubing (6 x 30cm) String for tying dialysis tubing Clear plastic drinking cups Sharpie Markers Funnels Glucose/starch solution Distilled water IKI solution Glucose TesTape 0‚ .2‚ .4‚ .6‚ .8‚ and 1 Molar Sucrose Solution Cork Borer Potatoes Scale Exercise 1: Diffusion Fill a dialysis bag with a sugar/starch solution and immerse the bag in a dilute iodine solution. Water‚ sugar‚ starch‚ and iodine molecules will all be in motion‚ and each molecule
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CONTENTS 1. Introduction 2. Theory 3. Apparatus 4. Chemicals required 5. Detection of pH 6. Test for Carbon Dioxide 7. Test for Glucose 8. Test for Phosphate 9. Test for Alcohol 10. Test for Sucrose 11. Result 12. Conclusion INTRODUCTION The era of cold drinks began in 1952 but the ‘Indianization’ of industry marked its beginning with launching of Limca and Goldspot by Parle group of companies. Since‚ the beginning of cold
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Panacetin‚ is originally produced by. Extraction of the chemicals Sucrose‚ Aspirin‚ and an Unknown substance is tested to determine the legitimacy of the label and drug. Theory: The percent composition is calculated for accuracy and to conclude the “label is accurate”. The formula for the percent composition is adding the sums of all the extracts‚ then dividing the total sum by each of the three (3) individual extract; Sucrose‚ Aspirin‚ Unknown. By separating
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