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Isolation of Staphylococcus from the Nose and Skin Part 1, Lab Reports of Microbiology

This PDF contains the answers to the lab which I got a 100% on.

Typology: Lab Reports

2022/2023

Available from 08/10/2023

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Name ____________________________________ Lab Section ________
Isolation of Staphylococcus from the Nose and Skin Part I - (9 pts)
1. Why did you use MSA to isolate Staphylococcus species from your skin or nose? (1 pt)
2. What is the morphology and Gram stain result for any Staphylococcus species? (2 pts)
Questions 3 - 5 will require use of outside sources such as a textbook or reputable online sources.
3. a. Is Staphylococcus aureus a normal inhabitant on our skin or in our nose? (1 pt)
b. If so, where is it found?
4. a. Is Staphylococcus epidermidis a normal inhabitant on our skin or in our nose? (1 pt)
b. If so, where is it found?
5. a. Is Staphylococcus saprophyticus a normal inhabitant on our skin or in our nose? (1 pt)
b. If so, where is it found?
Alexa Campanella
SU23
We used MSA plates because MSA plates are selective for Staphylococcus bacteria and
inhibit other bacterias.
Gram positive, coccihe morohology is cocci and gram stain is gram positive.
Yes
It's found in a typical human flora usually in the nose, armit, and groin area.
Yes
It's typically found on the skin. It prefers sweaty places on the body so it's normally found
in armpits; but it's not limited to this location and can be found on your back and in
nostrils.
https://www.micropia.nl/en/discover/microbiology/staphylococcus-epidermidis/#:~:
text=Staphylococcus%20epidermidis%20lives%20on%20everyone's,body%20odour%20
associated%20with%20perspiration.
It's part of the normal human flora and found in the perineum, rectum, urethra, cervix, and
GI tract.
https://www.ncbi.nlm.nih.gov/books/NBK482367/#:~:
text=cannot%20reduce%20nitrate.-,S.,%2C%20cervix%2C%20and%20gastrointestinal%2
0tract.

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Name ____________________________________ Lab Section ________

Isolation of Staphylococcus from the Nose and Skin – Part I - (9 pts)

  1. Why did you use MSA to isolate Staphylococcus species from your skin or nose? (1 pt)
  2. What is the morphology and Gram stain result for any Staphylococcus species? (2 pts)

Questions 3 - 5 will require use of outside sources such as a textbook or reputable online sources.

  1. a. Is Staphylococcus aureus a normal inhabitant on our skin or in our nose? (1 pt) b. If so, where is it found?
  2. a. Is Staphylococcus epidermidis a normal inhabitant on our skin or in our nose? (1 pt) b. If so, where is it found?
  3. a. Is Staphylococcus saprophyticus a normal inhabitant on our skin or in our nose? (1 pt) b. If so, where is it found?