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The Effectiveness of Disinfectants Lab, 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

alexa-yk6
alexa-yk6 🇺🇸

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Name ___________________________________ Lab Section ___________
Results & Interpretation (10 pts):
Class data: (4 pts)
Organism
Household Bleach
Hydrogen Peroxide
Isopropyl Alcohol
0.1%
1%
10%
1%
3%
25%
50%
75%
S. aureus
B. cereus
K. pneumoniae
E. coli
Questions: (6 pts)
1. Which disinfectant was most effective? Which was least effective? (1 pt)
Alexa Campanella
SU23
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Household bleach was the most effective and Hydrogen Peroxide was the
least effective.
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7 Name ___________________________________ Lab Section ___________ Results & Interpretation (10 pts) : Class data: (4 pts) Organism Household Bleach Hydrogen Peroxide Isopropyl Alcohol 0.1% 1% 10% 1 % 2 % 3 % 25 % 50 % 75 % S. aureus B. cereus K. pneumoniae E. coli Questions: (6 pts)

  1. Which disinfectant was most effective? Which was least effective? (1 pt)

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  1. What structure (if any), do each of the following possess that may make them more resistant to disinfectants and how does it provide resistance to the disinfectant. (1 pt each) a. Staphylococcus aureus: b. Bacillus cereus c. Klebsiella pneumonia d. Escherichia coli
  2. Were all four organisms equally affected by the disinfectants? (0.5 pt) If not, which species seemed most resistant to the disinfectant? (0.5 pt)