lab Capsule Staining
Ms.Bubbles
Lab4Capsulestaining3.docxLab 4 – Capsule staining
Submit to Lab 4 dropbox as Lab 4-week3_LastName_FirstInital
Name____________________________ Date________________________
Section__________________________
Title:
Purpose:
Methods: Lab book page 201- 202 video observations,
https://www.youtube.com/watch?v=HZU0G9_7c0I&t=18s
Results observed:
Fill in the results in the table and then write the conclusion
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Bacteria name |
En-capsulated bacteria |
Disease caused by this bacteria
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Klebsiella pueumoniae |
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Chlamydia trachomatis |
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Shigella dysenteriae |
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Streptococcus agalactiea |
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Pseudomonas aeruginosa |
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Conclusion:
In a narrative form
A capsule is what layer of bacteria? Why must the bacteria be live (not heat-fixed) for the capsule stain?
The presence of a capsule is a virulence factor for bacteria. How does a capsule protect the bacteria when it is in a host? Which body systems are most susceptible to a bacteria with a capsule?WHY?
In the capsule staining procedure what is stained the sample or the background? Is this an example of positive staining technique or a negative staining technique? How is this different from the staining in a gram stain or a simple stain?
