OpenStax Microbiology Test Bank Chapter 13: Control of Microbial Growth
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OpenStax Microbiology
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OpenStax Microbiology
OpenStax Microbiology Test Bank Chapter 13: Control of Microbial Growth
* = Correct answer Multiple Choice
1. Which of the following is not an example of a fomite?
A. catheter
B. doorknob
C. mosquitoes*
D. towels
Difficulty: Easy
ASM Standard: 13, 14, 23
2. HEPA filters are required ...
openstax microbiology test bank chapter 13 control of microbial growth correct answer multiple choice 1 which of the following is not an example of a fomite a catheter b doorknob c mosquito
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OpenStax Microbiology Test Bank
Chapter 13: Control of Microbial Growth
OpenStax Microbiology Test Bank Chapter 13: Control of
Microbial Growth
* = Correct answer
Multiple Choice
1. Which of the following is not an example of a fomite?
A. catheter
B. doorknob
C. mosquitoes*
D. towels
Difficulty: Easy
ASM Standard: 13, 14, 23
2. HEPA filters are required for which Biological Safety Level (BSL)?
A. BSL 1
B. BSL 2
C. BSL 3
D. BSL 4*
Difficulty: Easy
ASM Standard: 14, 37
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3. From a clinical perspective, aseptic technique is carried out to do which of the following?
A. clean fomites
B. contaminate fomites
C. introduce contamination in living tissue
D. prevent contamination in living tissue*
Difficulty: Easy
ASM Standard: 36, 37
4. The autoclave uses which of the following mechanism(s) for sterilization?
A. pressure
B. temperature
C. pressure and temperature*
D. pressure, temperature, and pH
Difficulty: Easy
ASM Standard: 14, 36, 37
5. Autoclaves are designed to kill which of the following heat-resistant microbes?
A. endospores*
B. prions
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OpenStax Microbiology Test Bank
Chapter 13: Control of Microbial Growth
C. vegetative bacterial and fungal cells
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OpenStax Microbiology Test Bank
Chapter 13: Control of Microbial Growth
D. viruses
Difficulty: Easy
ASM Standard: 14, 36, 37
6. The decimal reduction time (D-value) is how long it takes to kill which percentage of a
microbial population?
A. 10%
B. 50%
C. 90%*
D. 100%
Difficulty: Moderate
ASM Standard: 14
7. Which of the following actions would be most clearly considered bacteriostatic rather
than bactericidal?
A. autoclaving bacterial cultures
B. placing a bacterial culture in the −80 C freezer*
C. spraying 70% alcohol on a laboratory bench
D. treating a mattress with ethylene oxide
8. Microbial death follows which type of trend?
A. linear
B. logarithmic*
C. power series
D. variable
Difficulty: Moderate
ASM Standard: 14
9. Which of the following are the standard conditions for an autoclave?
A. 100 C, 1 psi, 60 minutes
B. 121 C, 1 psi, 60 minutes
C. 121 C, 15 psi, 20 minutes*
D. 212 C, 15 psi, 10 minutes
Difficulty: Moderate
ASM Standard: 14, 36, 37
10. Which of the following is not a milkborne pathogen?
A. Escherichia coli O157:H7
B. Listeria monocytogenes
Page 3 of 17
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