Analyzing The Primary Features Of Eukaryotic Cells

1710 WordsSep 17, 20157 Pages
Jonathan Bowers and Bo Fisher Mrs. Li Ko September 15, 2015 Life 120L Lab Report 1 Abstract The objective of this lab was to observe prepared bacterial cells and to observe and describe the primary features of eukaryotic cells. Also, we investigated the effect of concentration gradient and temperature on the rate of osmosis in an artificial system. Finally, we investigated the effect of solute concentration on the tonicity of cells in plant tissue and Elodea. The purpose of our experiments was to find out whether the effect of concentration gradient on the rate of osmosis had a greater effect than temperature on the rate of osmosis. The purpose of the Elodea experiment was to see if a five percent solution of sodium chloride or distilled water effected the structure of the Elodea. To observe the primary features of a eukaryotic cell we used a compound microscope. We tested the effect concentration gradients had on the rate of osmosis two ways: with potato tissue and with dialysis tubes. We used potato slices, paper towels, bowls, sodium chloride (at different concentration levels), and a scale to test potato tissue. We used dialysis tubing, sucrose solution (10% and 40% concentration gradients), plastic clips, bags, distilled water, and a scale to test the rate of osmosis with dialysis tubes. To test the solute concentration on the tonicity of cells in plant tissue and Elodea, we used Elodea, water, sodium chloride solution, tap water, a coverslip, and Kimwipe

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