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The main aim in the life science lessons is to learn how to handle bacteria, culture bacteria and observe the bacteria.
Member rating: No Rating | Words: | Submitted: Sat Aug 30 2003
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Summary The main aim in the life science lessons is to learn how to handle bacteria, culture bacteria and observe the bacteria. My hypothesis is that the bacteria in the collected sample would grow on or near the streaked line on the LB agar and there would be fewer bacteria on our thumbs after washing our hands with soap and drying it as compared to before washing. As for the Gram's staining, the bacteria would be of different colours (e.g. blue, purple, red) revealing the thickness of their cell walls. Their shape and arrangements would also be visible under the microscope. In order to test our hypothesis, we had to collect samples, which were suspected to contain bacteria and culture it on LB agar. We also had to test for bacteria on our thumb before and after washing of hands. Thereafter, we had to observe the bacteria more closely and clearly...
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