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Sep 27, 2009 · (I was absent the first 2 days of the lab). ACTIVITY B: OSMOSIS. 4.Write a hypothesis that this experiment is designed to test. 5.What variable is being tested in this experiment? This is from the Carolina Biological Supply Company lab report.
AP Biology Lab 9: Transpiration AP Biology Lab 9: Transpiration by Bozeman Science 8 years ago 5 minutes, 16 seconds 110,857 views Paul Andersen starts by defining transpiration as evaporation off of a leaf. He then describes how a potometer can be used to Investigation 13 - enzyme catalysis (with colorimeters)
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The most concentrated solutions would be Solution A (purple), Solution B (red), and Solution D (yellow). This grouping can be deduced by considering osmosis- if the sucrose solution in the beaker is higher than the sucrose concentration of the cell (hypertonic), water will leave the cell in an attempt to reach an isotonic state.
ap biology diffusion and osmosis lab hypothesis, A number of factors can affect the rate of diffusion, including temperature, molecular weight, concentration gradient, electrical charge, and distance. Water can also move by the same mechanism. This diffusion of water is called osmosis.
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In our lab, we modeled diffusion and osmosis with an interesting scenario. It is important for a solution to have salts in it so the water and solute can be equal to create an isotonic environment. However, if there was nothing, it would either be a hypotonic causing the cell to expand and burst or it would be hypertonic causing the cell to shrink.
formal lab reports in a composition book, following the guidelines in the attached “Lab Report Instructions.” The following is a list of our lab topics: Enzyme Catalysis Genetics of Drosophila Diffusion and Osmosis Origin of Life Mitosis and Meiosis with pop beads Population Genetics and Evolution