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
World Chapter 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
Chapter 9 : Microbial Growth
Chapter 10 : Biochemistry of the
Genome Chapter 11 : Mechanisms of
Microbial Genetics
Chapter 12 : Modern Applications of Microbial Genetics
Chapter 13 : Control of Microbial Growth
Chapter 14 : Antimicrobial Drugs
Chapter 15 : Microbial Mechanisms of Pathogenicity
Chapter 16 : Disease and Epidemiology
Chapter 17 : Innate Nonspecific Host
Defenses Chapter 18 : Adaptive Specific
Host Defenses Chapter 19 : Diseases of
,the Immune System
Chapter 20 : Laboratory Analysis of the
Immune Response 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 Bank
Chapter 1: An Invisible World
Chapter hg1: hgAn hgInvisible hgWorld
* hg(correct
hg answer) hg=
Correct hganswer
h
g
hg Multiple hgChoice
1. Which hgof hgthe hgfollowing hgis hgtrue hgof hgthe hgmicrobial hgworld?
A. All hgmicrobes hgare hgharmful.
B. Humans hgcould hgsurvive hgwithout hgmicrobes.
C. Many hgmicrobes hgare hghelpful.* hg(correct hganswer)
D. Most hgmicrobes hgare hgpathogenic.
Difficulty: hgEasy
ASM hgStandard: hg23, hg24
2. Which hgof hgthe hgfollowing hgis hgwhen hghumans hgfirst hgsuspected hgthe hgexistence hgof hgmicrobes?
A. during hgthe hgIndustrial hgRevolution
B. in hgprehistoric hgtimes* hg(correct hganswer)
C. in hgthe hglast hgcentury
D. within hgthe hglast hg500 hgyears
Difficulty: hgEasy
hgASM hgStandard:
hg23
3. Which hgindividual hgfirst hgobserved hgunicellular hgorganisms, hgwhich hghe hgcalled
hg“animalcules,” hgusingha hgmicroscope hghe hgdeveloped?
g
A. Robert hgKoch
B. Louis hgPasteur
C. Thucydides
D. Antonie hgvan hgLeeuwenhoek* hg(correct hganswer)
Difficulty: hgEasy
hgASM
hgStandard: hg6
4. To hgreduce hgthe hgrisk hgof hgopen hgflame hgfrom hgBunsen hgburners, hgmicrobiologists hgare
Page 1 of 17
, OpenStax Microbiology Test Bank
Chapter 1: An Invisible World
hgincreasingly hgusinghgwhich hgof hgthe hgfollowing hgdevices hgfor hgeasy, hgrapid hgbenchtop
hgsterilization hgof hgsmall hgpieces hgof hgequipment?
A. autoclaves
B. ethylene hgoxide
C. incubators
D. microincinerators* hg(correct hganswer)
Difficulty: hgEasy
hgASM hgStandard:
hg36
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
World Chapter 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
Chapter 9 : Microbial Growth
Chapter 10 : Biochemistry of the
Genome Chapter 11 : Mechanisms of
Microbial Genetics
Chapter 12 : Modern Applications of Microbial Genetics
Chapter 13 : Control of Microbial Growth
Chapter 14 : Antimicrobial Drugs
Chapter 15 : Microbial Mechanisms of Pathogenicity
Chapter 16 : Disease and Epidemiology
Chapter 17 : Innate Nonspecific Host
Defenses Chapter 18 : Adaptive Specific
Host Defenses Chapter 19 : Diseases of
,the Immune System
Chapter 20 : Laboratory Analysis of the
Immune Response 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 Bank
Chapter 1: An Invisible World
Chapter hg1: hgAn hgInvisible hgWorld
* hg(correct
hg answer) hg=
Correct hganswer
h
g
hg Multiple hgChoice
1. Which hgof hgthe hgfollowing hgis hgtrue hgof hgthe hgmicrobial hgworld?
A. All hgmicrobes hgare hgharmful.
B. Humans hgcould hgsurvive hgwithout hgmicrobes.
C. Many hgmicrobes hgare hghelpful.* hg(correct hganswer)
D. Most hgmicrobes hgare hgpathogenic.
Difficulty: hgEasy
ASM hgStandard: hg23, hg24
2. Which hgof hgthe hgfollowing hgis hgwhen hghumans hgfirst hgsuspected hgthe hgexistence hgof hgmicrobes?
A. during hgthe hgIndustrial hgRevolution
B. in hgprehistoric hgtimes* hg(correct hganswer)
C. in hgthe hglast hgcentury
D. within hgthe hglast hg500 hgyears
Difficulty: hgEasy
hgASM hgStandard:
hg23
3. Which hgindividual hgfirst hgobserved hgunicellular hgorganisms, hgwhich hghe hgcalled
hg“animalcules,” hgusingha hgmicroscope hghe hgdeveloped?
g
A. Robert hgKoch
B. Louis hgPasteur
C. Thucydides
D. Antonie hgvan hgLeeuwenhoek* hg(correct hganswer)
Difficulty: hgEasy
hgASM
hgStandard: hg6
4. To hgreduce hgthe hgrisk hgof hgopen hgflame hgfrom hgBunsen hgburners, hgmicrobiologists hgare
Page 1 of 17
, OpenStax Microbiology Test Bank
Chapter 1: An Invisible World
hgincreasingly hgusinghgwhich hgof hgthe hgfollowing hgdevices hgfor hgeasy, hgrapid hgbenchtop
hgsterilization hgof hgsmall hgpieces hgof hgequipment?
A. autoclaves
B. ethylene hgoxide
C. incubators
D. microincinerators* hg(correct hganswer)
Difficulty: hgEasy
hgASM hgStandard:
hg36
Page 2 of 17
