OpenStax Microbiology Test Bank / OSX
Microbiology Test Bank - Chapter 01 to
Chapter 26 2026 Update
,Multiple Choice, True/False, Matching, Fill in the Blank, Short Answers& Brief Essay
Chapter 1 : An Invisible World
Chapter 2 : How We See the Invisible WorldChapter 3 :
The Cell
Chapter 4 : Prokaryotic Diversity
Chapter 5 : The Eukaryotes of Microbiology Chapter 6 :
Acellular Pathogens
Chapter 7 : Microbial
Biochemistry Chapter 8 :
Microbial Metabolism Chapter9 :
Microbial Growth
Chapter 10 : Biochemistry of the Genome Chapter 11 :
Mechanisms of Microbial Genetics
Chapter 12 : Modern Applications of Microbial GeneticsChapter 13 : Control
of Microbial Growth
Chapter 14 : Antimicrobial Drugs
Chapter 15 : Microbial Mechanisms of PathogenicityChapter 16 : Disease
and Epidemiology
Chapter 17 : Innate Nonspecific Host Defenses Chapter
18 : Adaptive Specific Host Defenses Chapter 19 :
Diseases of theImmune System
Chapter 20 : Laboratory Analysis of the ImmuneResponse
Chapter 21 : Skin and Eye Infections Chapter 22 : Respiratory
System Infections Chapter 23 : Urogenital System Infections
Chapter 24 : Digestive System Infections
Chapter 25 : Circulatory and Lymphatic System Infections Chapter 26 :
Nervous System Infections Description
,OpenStax Microbiology Test
BankChapter 1: An Invisible
World
Chapter 1: An Invisible World
1. Which of the following is true of the microbial world?
A. All microbes are harmful.
B. Humans could survive without microbes.
C. Many microbes are helpful.* (correct answer)
D. Most microbes are pathogenic.
Difficulty: Easy
ASM Standard: 23, 24
2. Which of the following is when humans first suspected the existence of microbes?
A. during the Industrial Revolution
B. in prehistoric times* (correct answer)
C. in the last century
D. within the last 500 years
Difficulty: Easy
ASM Standard: 23
3. Which individual first observed unicellular organisms, which he called “animalcules,”
using a microscope he developed?
A. Robert Koch
B. Louis Pasteur
C. Thucydides
D. Antonie van Leeuwenhoek* (correct answer)
Difficulty: Easy
ASM Standard:
6
4. To reduce the risk of open flame from Bunsen burners, microbiologists are
increasingly using which of the following devices for easy, rapid benchtop
sterilization of small pieces of equipment?
A. autoclaves
B. ethylene oxide
C. incubators
D. microincinerators* (correct answer)
Difficulty: Easy
ASM Standard: 36
Page 1 of 17
, OpenStax Microbiology Test
BankChapter 1: An Invisible
5. Which kingdom was the only one found in Empire Prokaryota?
World
A. Animalia
B. Fungi
C. Monera* (correct answer)
D. Protista
Difficulty: Easy
ASM Standard:
N/A
6. The Swedish botanist known for having developed an important biological
classification system is which of the following people?
A. Ernst Haeckel
B. Carolus Linnaeus* (correct answer)
C. Louis Pasteur
D. Robert Whittaker
Difficulty: Easy
ASM Standard:
N/A
7. Which are the three currently accepted domains?
A. Archaea, Bacteria, and Eukarya* (correct answer)
B. Archaea, Prokaryota, and Eukaryota
C. Bacteria, Fungi, and Protista
D. Bacteria, Prokaryota, and Eukarya
Difficulty: Easy
ASM Standard:
N/A
8. Which two taxonomic units are typically used to identify an organism when using
binomial nomenclature?
A. domain and kingdom
B. genus and family
C. genus and species* (correct answer)
D. phylum and class
Difficulty: Easy
Page 2 of 17
Microbiology Test Bank - Chapter 01 to
Chapter 26 2026 Update
,Multiple Choice, True/False, Matching, Fill in the Blank, Short Answers& Brief Essay
Chapter 1 : An Invisible World
Chapter 2 : How We See the Invisible WorldChapter 3 :
The Cell
Chapter 4 : Prokaryotic Diversity
Chapter 5 : The Eukaryotes of Microbiology Chapter 6 :
Acellular Pathogens
Chapter 7 : Microbial
Biochemistry Chapter 8 :
Microbial Metabolism Chapter9 :
Microbial Growth
Chapter 10 : Biochemistry of the Genome Chapter 11 :
Mechanisms of Microbial Genetics
Chapter 12 : Modern Applications of Microbial GeneticsChapter 13 : Control
of Microbial Growth
Chapter 14 : Antimicrobial Drugs
Chapter 15 : Microbial Mechanisms of PathogenicityChapter 16 : Disease
and Epidemiology
Chapter 17 : Innate Nonspecific Host Defenses Chapter
18 : Adaptive Specific Host Defenses Chapter 19 :
Diseases of theImmune System
Chapter 20 : Laboratory Analysis of the ImmuneResponse
Chapter 21 : Skin and Eye Infections Chapter 22 : Respiratory
System Infections Chapter 23 : Urogenital System Infections
Chapter 24 : Digestive System Infections
Chapter 25 : Circulatory and Lymphatic System Infections Chapter 26 :
Nervous System Infections Description
,OpenStax Microbiology Test
BankChapter 1: An Invisible
World
Chapter 1: An Invisible World
1. Which of the following is true of the microbial world?
A. All microbes are harmful.
B. Humans could survive without microbes.
C. Many microbes are helpful.* (correct answer)
D. Most microbes are pathogenic.
Difficulty: Easy
ASM Standard: 23, 24
2. Which of the following is when humans first suspected the existence of microbes?
A. during the Industrial Revolution
B. in prehistoric times* (correct answer)
C. in the last century
D. within the last 500 years
Difficulty: Easy
ASM Standard: 23
3. Which individual first observed unicellular organisms, which he called “animalcules,”
using a microscope he developed?
A. Robert Koch
B. Louis Pasteur
C. Thucydides
D. Antonie van Leeuwenhoek* (correct answer)
Difficulty: Easy
ASM Standard:
6
4. To reduce the risk of open flame from Bunsen burners, microbiologists are
increasingly using which of the following devices for easy, rapid benchtop
sterilization of small pieces of equipment?
A. autoclaves
B. ethylene oxide
C. incubators
D. microincinerators* (correct answer)
Difficulty: Easy
ASM Standard: 36
Page 1 of 17
, OpenStax Microbiology Test
BankChapter 1: An Invisible
5. Which kingdom was the only one found in Empire Prokaryota?
World
A. Animalia
B. Fungi
C. Monera* (correct answer)
D. Protista
Difficulty: Easy
ASM Standard:
N/A
6. The Swedish botanist known for having developed an important biological
classification system is which of the following people?
A. Ernst Haeckel
B. Carolus Linnaeus* (correct answer)
C. Louis Pasteur
D. Robert Whittaker
Difficulty: Easy
ASM Standard:
N/A
7. Which are the three currently accepted domains?
A. Archaea, Bacteria, and Eukarya* (correct answer)
B. Archaea, Prokaryota, and Eukaryota
C. Bacteria, Fungi, and Protista
D. Bacteria, Prokaryota, and Eukarya
Difficulty: Easy
ASM Standard:
N/A
8. Which two taxonomic units are typically used to identify an organism when using
binomial nomenclature?
A. domain and kingdom
B. genus and family
C. genus and species* (correct answer)
D. phylum and class
Difficulty: Easy
Page 2 of 17
