Differential Staining Methods

Differential Staining Methods - in our environment and the...

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Differential Staining Methods (2) The purpose of the “differential staining method” lab is to be able to view the bacterial cells’ morphology, characteristics and structures more clearly by using various staining techniques, which include gram staining, spore staining and capsule staining. After conducting the gram stain on the bacteria Bacillus subtilis , it showed the bacteria to be gram positive because it retained the crystal violet stain. Therefore, it made the bacteria’s structure more visible and easier to view under the optical microscope. Distribution of Microorganisms (3) The purpose of the “distribution of microorganisms” lab is to view and note the various types of microbial organisms that are present in our immediate environment by. After conducting this lab, it shows that there are many types of organisms that are present
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Unformatted text preview: in our environment and the importance of disinfecting. The specimen with the bench swab (swab was sterilized with the wescodyne), did not show any trace of bacterial organisms growing on the agar. On the other hand, the specimens: 30 minutes lab air, hair, desk and chair swab all showed growth of bacterial microorganisms because none of the swabs were sterilized with the wescodyne. In addition, this experiment shows that there can be various types of organisms living on one surface because in some specimen dishes, there were as many as five different colonies present. The presence of bacterial organisms on the agar allows us to conclude; without the utilization of a disinfectant, bacterial organisms will be present....
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This note was uploaded on 01/31/2011 for the course MCB 2000 taught by Professor Bruno, m during the Spring '08 term at UConn.

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