BIOS 111 Quiz: Microscopy I

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11 Feb 2017
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Students should be able to locate and identify. Today, we will be practicing cell staining through the use of simple and gram staining techniques. At the experiment"s conclusion, we expect to have found and identified gram- negative and gram-positive cells because these specific techniques will allow us to differentiate between the two based on their reactions to the dyes. Be careful not to disturb the surface of the agar: mix the cells into the water droplet on the slide, follow steps 6-8 as above. After conducting this experiment, we were able to identify five different types of cells: staphylococcus aureus, mixed cultures (simple and gram stained), bacillus, and e. coli. In addition, staphylococcus aureus and bacillus were found to be. Simple staining allowed us to see detail within the cells and differentiate them from their background. Gram staining helps to give information about the biochemical composition of an organism.