Test Bank for Microbiology - A Systems Approach, 7th Edition by Marjorie Kelly
1 Cowan, All Chapters 1-25 LATEST 2026-03-10
Page 1 of 754 Test Bank for Microbiology - A SystemsPage
Approach,
1 7th Edition by Marjorie Kelly Cowan, All Chapters 1-25 LATEST.docx
,Test Bank for Microbiology - A Systems Approach, 7th Edition by Marjorie Kelly
2 Cowan, All Chapters 1-25 LATEST 2026-03-10
Ch- 1 TEST BANK
1) Microorganisms are best defined as organisms that .
A) cause human disease
B) lack a cell nucleus
C) are infectious particles
D) are too small to be seen with the unaided eye
E) can only be found growing in laboratories
2) Which of the following are not considered microorganisms?
A) Mosquitoes
B) Protozoa
C) Bacteria
D) Viruses
E) Fungi
3) Helminths are .
A) bacteria
B) protozoa
C) molds
D) parasitic worms
E) infectious particles
Page 2 of 754 Test Bank for Microbiology - A SystemsPage
Approach,
2 7th Edition by Marjorie Kelly Cowan, All Chapters 1-25 LATEST.docx
,Test Bank for Microbiology - A Systems Approach, 7th Edition by Marjorie Kelly
3 Cowan, All Chapters 1-25 LATEST 2026-03-10
4) Among these types of microorganisms, the _ arenoncellular.
A) viruses
B) helminths
C) protozoans
D) bacteria
5) Studies of the immune response to an infection caused by microorganisms would be
performed by a/an .
A) hypersensitivity specialist
B) epidemiologist
C) immunologist
D) geomicrobiologist
6) Which of the following pairs of career descriptions and work tasks is not correctly
matched?
A) Industrial microbiologist -- manipulate bacterial strains to be less pathogenic
B) Agricultural microbiologist -- identify bacterial causes of crop disease
C) Public health microbiologist -- track the incidence of AIDS in a population
D) Medical microbiologist -- identify the cause of a bladder infection at a hospital lab
7) A scientist who studies the influence of microbes in the formation of caves is called a/an
.
Page 3 of 754 A) geomicrobiologist
Test Bank for Microbiology - A SystemsPage
Approach,
3 7th Edition by Marjorie Kelly Cowan, All Chapters 1-25 LATEST.docx
, Test Bank for Microbiology - A Systems Approach, 7th Edition by Marjorie Kelly
4 Cowan, All Chapters 1-25 LATEST 2026-03-10
B) astrobiologist
C) epidemiologist
D) immunologist
8) Astrobiology is considered a sub-discipline of microbiology because .
A) life elsewhere in the universe is likely to be microbial
B) microbes are known to exist on other planets
C) all extraterrestrials known are microbial
D) only microbes can reproduce under the extreme conditions in outer space
9) Which of the following does not indicate microbe involvement in energy and nutrient
flow?
A) Thermal hot springs warmed by heat from earth's interior
B) Formation of greenhouse gases, CO 2 and methane
C) Digestion of complex carbohydrates in animal diets
D) Decomposition of dead matter and wastes
10) The microorganisms that recycle nutrients by breaking down dead matter and wastes are
called .
A) decomposers
B) prokaryotes
C) pathogens
D) eukaryotes
E) fermenters
Page 4 of 754 Test Bank for Microbiology - A SystemsPage
Approach,
4 7th Edition by Marjorie Kelly Cowan, All Chapters 1-25 LATEST.docx
1 Cowan, All Chapters 1-25 LATEST 2026-03-10
Page 1 of 754 Test Bank for Microbiology - A SystemsPage
Approach,
1 7th Edition by Marjorie Kelly Cowan, All Chapters 1-25 LATEST.docx
,Test Bank for Microbiology - A Systems Approach, 7th Edition by Marjorie Kelly
2 Cowan, All Chapters 1-25 LATEST 2026-03-10
Ch- 1 TEST BANK
1) Microorganisms are best defined as organisms that .
A) cause human disease
B) lack a cell nucleus
C) are infectious particles
D) are too small to be seen with the unaided eye
E) can only be found growing in laboratories
2) Which of the following are not considered microorganisms?
A) Mosquitoes
B) Protozoa
C) Bacteria
D) Viruses
E) Fungi
3) Helminths are .
A) bacteria
B) protozoa
C) molds
D) parasitic worms
E) infectious particles
Page 2 of 754 Test Bank for Microbiology - A SystemsPage
Approach,
2 7th Edition by Marjorie Kelly Cowan, All Chapters 1-25 LATEST.docx
,Test Bank for Microbiology - A Systems Approach, 7th Edition by Marjorie Kelly
3 Cowan, All Chapters 1-25 LATEST 2026-03-10
4) Among these types of microorganisms, the _ arenoncellular.
A) viruses
B) helminths
C) protozoans
D) bacteria
5) Studies of the immune response to an infection caused by microorganisms would be
performed by a/an .
A) hypersensitivity specialist
B) epidemiologist
C) immunologist
D) geomicrobiologist
6) Which of the following pairs of career descriptions and work tasks is not correctly
matched?
A) Industrial microbiologist -- manipulate bacterial strains to be less pathogenic
B) Agricultural microbiologist -- identify bacterial causes of crop disease
C) Public health microbiologist -- track the incidence of AIDS in a population
D) Medical microbiologist -- identify the cause of a bladder infection at a hospital lab
7) A scientist who studies the influence of microbes in the formation of caves is called a/an
.
Page 3 of 754 A) geomicrobiologist
Test Bank for Microbiology - A SystemsPage
Approach,
3 7th Edition by Marjorie Kelly Cowan, All Chapters 1-25 LATEST.docx
, Test Bank for Microbiology - A Systems Approach, 7th Edition by Marjorie Kelly
4 Cowan, All Chapters 1-25 LATEST 2026-03-10
B) astrobiologist
C) epidemiologist
D) immunologist
8) Astrobiology is considered a sub-discipline of microbiology because .
A) life elsewhere in the universe is likely to be microbial
B) microbes are known to exist on other planets
C) all extraterrestrials known are microbial
D) only microbes can reproduce under the extreme conditions in outer space
9) Which of the following does not indicate microbe involvement in energy and nutrient
flow?
A) Thermal hot springs warmed by heat from earth's interior
B) Formation of greenhouse gases, CO 2 and methane
C) Digestion of complex carbohydrates in animal diets
D) Decomposition of dead matter and wastes
10) The microorganisms that recycle nutrients by breaking down dead matter and wastes are
called .
A) decomposers
B) prokaryotes
C) pathogens
D) eukaryotes
E) fermenters
Page 4 of 754 Test Bank for Microbiology - A SystemsPage
Approach,
4 7th Edition by Marjorie Kelly Cowan, All Chapters 1-25 LATEST.docx
