11 | 0.0 | 5.56 | 6.15 | 0.59 | 11.0% | Questions: 1) As the Concentration of the Sucrose Solution increases‚ the more the potato’s mass decreases. This is due to the solution being hypotonic. So‚ as the solute concentration gets higher‚ the potato’s water concentration will get
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other and how a plastic bag works similar to a membrane in certain situations. Introduction: I know prior to doing this experiment that iodine mixed with starch creates a dark color and that most objects‚ organic and inorganic‚ naturally experience isotonic reactions. Hypothesis: I think that the potato will absorb more starch than the sweet potato and they will both absorb relatively similar amounts of water. Procedure: Variables: Controlled- water and size of potatoes. Manipulated variables- potatoes
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UMUC Biology 102/103 Lab 3: Cell Structure and Function INSTRUCTIONS: On your own and without assistance‚ complete this Lab 3 Answer Form electronically and submit it via the Assignments Folder by the date listed on your Course Schedule (under Syllabus). To conduct your laboratory exercises‚ use the Laboratory Manual that is available in the WebTycho classroom (Reserved Reading or provided by your instructor) or at the eScience Labs Student Portal. Laboratory exercises on your CD may not be
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“Is Starch Permeable in Cells? Abstract This report presents the weights of 3 samples of water with various amounts of solute after the use of osmosis. Three different tests were performed‚ each with a beaker of water containing varying amounts of starch from 30% concentration (12.5 grams of water) to 15% concentration (9.5 grams of water)‚ and then 0% (10.5 grams of water). To start this experiment‚ we put water into a make-shift dialysis tube‚ a type of semi-permeable membrane tubing made
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osmolality and the term tonicity referrers to the osmolality of a solution. The cells in the body are exposed to three different solutions classified as isotonic‚ hypotonic‚ and hypertonic. Isotonic solutions have the same osmolality as body fluids. They do not change the size or shape of the cells‚ leaving them in a balanced state. Examples of isotonic fluids include 0.9% saline‚ Lactated Ringers (LR)‚ D5W‚ 0.225% saline‚ D5/0.225%‚ Whole Blood‚ and Packed Red Blood Cells. 5% Dextrose‚ Normal Saline
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performing this experiment‚ the main element to consider is hypertonic‚ hypotonic and isotonic solutions and how they relate to osmosis. Osmosis is the process where a fluid passes through a semipermeable membrane‚ which moves from an area which the solute is present in high concentrations. As a result of osmosis‚ there will be an equal amount of fluid on either side of the barrier‚ creating an isotonic solution. When cells are placed in an isotonic solution‚ the movement of water outside of the cell
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solutions are isotonic. This means that the solutions have the same concentration of solutes. If two solutions differ in the concentration of solutes that each has‚ the one with more solute is hypertonic. The solution that has less solute is hypotonic Apparatus: Experiment 1: Diffusion 1. Elodea plant 2. Zipper plant 3. Hypotonic solution 4. Hypertonic solution 5. Light microscope Experiment 2: Osmosis 1. 4 slides 2. Potato 3. Hypotonic solution 4
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Tube 1) Distilled water: This bag will lose water. b. Tube 2) .2M sucrose solution: This bag will lose water. c. Tube 3) .4M sucrose solution: This bag is isotonic to the beaker and will remain the same in mass. d. Tube 4) .6 M sucrose solution: This bag will gain water e. Tube 5) .8 M sucrose solution: This bag will gain water. f. Tube 6) 1.0 M sucrose solution: This bag will gain water. 10. A
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The decalcified eggs will be weighed before and after being put in the solutions. The zero and ten percent solutions are hypotonic‚ so the eggs should gain weight. The twenty percent solution is isotonic and the weight should primarily stay the same. The forty percent solution is hypertonic‚ so the weight should decrease. (Muller) Experimental Procedure Eight eggs are placed in a medium glass bowl and covered in vinegar. (Although‚ we only need four
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Water molecules move from high to low Osmosis is what they seem to know Solute and Solvent are what’s inside The polarity of water makes it easy to find “Hyper” and “Hypo” tells you how much is there But isotonic means that they are fair Water molecules move from the inside out Scientists call this plasmolysis without a doubt All of this happens inside a membrane It is a serious matter‚ not a fun little game When a membrane is selective it chooses what it wants Few things are moved through
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