Sophie Murdock Osmosis Lab Osmosis in Plant Cells: Solution Initial Volume (mL) Final Volume (mL) Percent Change Distilled Water 0.8 1.0 125% 0.4% NaCl 0.5 0.8 160% 0.9% NaCl 0.6 0.8 133% 5% NaCl 0.6 0.5 83% 10% NaCl 0.6 0.5 83% 8. The cells in the solutions of distilled water‚ 0.4% NaCl‚ and 0.9% NaCl would all appear to be inflated and could burst. This is due to the fact that the solution is hypotonic to the potato‚ thus water is entering the cell. Meanwhile‚ the cells in the solutions
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Osmosis is the selective diffusion of water and other molecules across membranes‚ which in the case of living organisms‚ the solvent (water) would have net movement across a selective permeable membrane. Osmosis only occurs when a membrane such as that of a cell is permeable to water molecules but not to specific solutes (Tortora & Derrickson 2014). Certain simple molecules such as oxygen‚ water and carbon dioxide can travel across the cell membrane by osmosis‚ a passive process similar to other
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Objective: To study osmosis in living plant tissue. Biological principles: Water potential is the tendency for water molecules to enter or leave a system by osmosis through a differentially permeable membrane‚ while osmosis is the process in which water molecules move passively from a region of higher water potential to a region of lower water potential through a differentially permeable membrane. Therefore‚ potato cells‚ with their differentially permeable membrane‚ are selected as the medium
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Name: ______________________________________ Date: ________________________ Student Exploration: Pollination: Flower to Fruit Vocabulary: anther‚ cross pollination‚ filament‚ fruit‚ nectar‚ ovary‚ ovule‚ pedicel‚ petal‚ pistil‚ pollen‚ pollen tube‚ pollination‚ receptacle‚ self pollination‚ sepal‚ stamen‚ stigma‚ style Prior Knowledge Question (Do this BEFORE using the Gizmo.) Plants use sunlight to produce sugar. Flowering plants make some of this sugar available to animals in the form
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This part of the experiment yielded an exothermic reaction. The purpose was to calculate the specific heat capacity and molar mass of the zinc metal. The specific heat capacity was found to be 0.197 J/g °C with a percent error of -49.5%. The molar mass was found to be 127 g/mol with a percent error of 94.2%. Possible sources of error inherent to this segment of the experiment were the fact that when the temperature of the solution was being measured
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calibrated flow nozzle for additional flow measure¬ment. If testing of the LP stage only is required the HP stage can be shut down completely. The test rig is fully equipped with measuring instruments like thermometers‚ pres¬sure gauges‚ inclined U-tube manometers‚ tachometers‚ etc. The technical data of the test rig are as follows: constant speed AC motor‚ while the HP stage is driven by a variable speed DC motor. This feature allows variation of the intermediate pressure. Each stage is provided
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Cited: : 1- http://www.freshwatersystems.com/c-137-reverse-osmosis-systems.aspx 2- www.uswatersystems.com/shop/.../ 3- 115 GPM AXEON X2-Series Industrial Reverse Osmosis Systems
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Anoura fistulata‚ otherwise known as the tube-lipped nectar bat‚ is a nectarivorous species endemic to South America (Mantilla-Meluk et al. 2009). A. fistulata specializes in feeding on the nectar and pollen from larger flowering plants‚ but also frequently hunts insects to round out it’s diet (Muchhala et al. 2005). However‚ unlike other species of the same genus A. fistulata has co-evolved as a pollinator of the bellflower Centropogon nigricans (Muchhala et al. 2009). C. nigricans has developed
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Osmosis investigation Aim: To investigate how sugar concentration affects the mass or size of a potato and find out the sugar solution. Introduction: Osmosis is the movement of water molecules across a partially permeable membrane form a region of high water concentration to a region of low water concentration until the concentration on both sides is equal. This means that osmosis is like diffusion involving water molecules. Osmosis occurs across a partially permeable membrane‚ with holes
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know why phenomenon or things happen. They just accept it without knowing the cause of it. And there is no meaning in it if we just accept things without reasons. That’s why this experiment is conducted so that we may know how things happen in the level of cells. Objectives: 1. To demonstrate the principle of Osmosis and to apply it with actual life situations. Materials and Methods: • Materials: Compound microscope Glass Slide Cover Slip Tissue Paper Blade Rhoeo discolor
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