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
2. HEPA filters are required for which Biological Safety Level (BSL)?
A. BSL 1
B. BSL 2
C. BSL 3
D. BSL 4*
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
tissueD. prevent contamination in living
tissue*
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
5. Autoclaves are designed to kill which of the following heat-resistant
microbes?A. endospores*
B. prions
C. vegetative bacterial and fungal cells
, OpenStax Microbiology Test Bank Chapter 13: Control of
Microbial Growth
D. viruses
6. The decimal reduction time (D-value) is how long it takes to kill which percentage of
amicrobial population?
A. 10%
B. 50% C.
90%*D.
100%
7. Which of the following actions would be most clearly considered bacteriostatic rather
thanbactericidal?
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
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
10. Which of the following is not a milkborne pathogen?
A. Escherichia coli O157:H7
B. Listeria monocytogenes
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
2. HEPA filters are required for which Biological Safety Level (BSL)?
A. BSL 1
B. BSL 2
C. BSL 3
D. BSL 4*
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
tissueD. prevent contamination in living
tissue*
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
5. Autoclaves are designed to kill which of the following heat-resistant
microbes?A. endospores*
B. prions
C. vegetative bacterial and fungal cells
, OpenStax Microbiology Test Bank Chapter 13: Control of
Microbial Growth
D. viruses
6. The decimal reduction time (D-value) is how long it takes to kill which percentage of
amicrobial population?
A. 10%
B. 50% C.
90%*D.
100%
7. Which of the following actions would be most clearly considered bacteriostatic rather
thanbactericidal?
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
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
10. Which of the following is not a milkborne pathogen?
A. Escherichia coli O157:H7
B. Listeria monocytogenes
