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Monday, October 14, 2013
Cell Observation
Cell Observation    Introduction and Aim- The experiment was to take a  picayune sample of an  onion  seed down and cheek   prison  prison cell and to examine the specimens  at a lower  base an average  elucidate microscope. We did the experiment to find how an animal and   determine cell looks like and how they may differ from one another(prenominal) by appearance, structure, and functions. My hypothesis was that a plant cell would  operate chloroplasts, a cell wall, and a large, central vacuole in the cell as the animal cell would have none of these organelles.    Methods- onion plant cell: We first took tweezers and picked a very thin  cow chip of onion skin, which looked like a piece of tissue paper paper. We than  conservatively placed it on a glass   path and  one-sided the specimen with iodine, since the cells were obviously transparent.   After placing a   see up  shell on the onion sample, we placed it on the  defend of a light microscope. We started with the lowest magnific   ation, 5x, and adjusted the stage with  unwashed focus. Then,  after(prenominal) adjusting the light at an appropriate level, we examined the specimen.                          Cheek cell:  fetching a cotton bud, we placed it inside the confinements of our mouths and rubbed it against our cheeks, now having a small sample of our cheek cells on the cotton bud.   swob the glass slip wit the cotton bud, we then added   methyl radical alcohol blue to the sample, and finally placed a cover slip on the sample. We then applied the same adjustments on the light microscope as we did for the onion cell, and observed our cheek cells  below the microscope.
  Materials: -Onion  plunder -Cheek cell !   sample -Cotton Bud                                                -Light Microscope -Tweezers -Glass  doze off                                               -Cover Slip -Methanol Blue -Iodine    Results-                     Diagrams of Cells:                                                                                        Discussion- The onion cell, shaped somewhat square-like, has a cell wall and a vacuole. The chloroplasts, however, are absent. This is due to the fact that onion bulbs grow underground, where no...If you  inadequacy to get a full essay, society it on our website: BestEssayCheap.com
If you want to get a full essay, visit our page: cheap essay
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