2016 Semester 1 Unit 3 Gummy Bear Osmosis Lab Project (2) -...

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Introduction to General, Organic and Biochemistry
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Chapter 1 / Exercise 1-94
Introduction to General, Organic and Biochemistry
Brown
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Unit 3 Lab Project Osmosis of Water with Gummy Bears You will be writing a hypothesis, conducting an experiment to test it, collecting data, and drawing a conclusion about your results You will need to buy gummy bears (you can also use a potato cut into small cubes of the same size instead if you already have one ) The purpose of this experiment is to observe the process of osmosis using a polymer. Gummy Bears are made of gelatin and sugar. Gelatin is a polymer that forms large three-dimensional matrices, which give structural support to jellies, jams and lots of other things you use every day. Background: Molecules are always moving. Remember that DIFFUSION is the movement of molecules from an area that is highly crowded (HIGH CONCENTRATION) to an area that is less crowded (LOW CONCENTRATION) OSMOSIS is similar to DIFFUSION. OSMOSIS is the diffusion of water molecules through a selectively permeable membrane.--- Like your CELL MEMBRANE (Phospholipid Bilayer) Remember that selectively permeable means some molecules can move through the membrane while others cannot.
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Introduction to General, Organic and Biochemistry
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Chapter 1 / Exercise 1-94
Introduction to General, Organic and Biochemistry
Brown
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