TEST BANK For
Microbiology: A Systems
Approach, 7th Edition by
Marjorie Kelly Cowan All 1-
25 All Chapters Covered
,Latest Edition
,TABLE OF CONTENTS
Chapter Title Page
1 The Main Themes of Microbiology 3
2 The Chemistry of Biology 20
3 Tools of the Laboratory: Methods for Culturing and Microscopy 40
4 Bacteria and Archaea 61
5 Eukaryotic Cells and Microorganisms 82
6 Viruses and Prions 103
7 Microbial Genetics 127
8 Genetic Analysis and Recombinant DNA Technology 148
9 Microbial Nutrition and Growth 168
10 Microbial Metabolism 193
11 Physical and Chemical Control of Microbes 217
12 Antimicrobial Treatment 244
13 Microbe-Human Interactions: Health and Disease 276
14 Epidemiology of Infectious Diseases 307
15 Host Defenses I: Overview and Innate Immunity 331
16 Host Defenses II: Adaptive Immunity and Immunization 355
17 Disorders in Immunity 379
,Chapter Title Page
18 Diagnosing Infections 404
19 Infectious Diseases of the Skin and Eyes 429
20 Infectious Diseases of the Nervous System 450
21 Infectious Diseases of the Cardiovascular and Lymphatic Systems 469
22 Infectious Diseases of the Respiratory System 492
23 Infectious Diseases of the Gastrointestinal Tract 516
24 Infectious Diseases of the Genitourinary System 541
25 Microbes in Our Environment and One Health 566
CHAPTER 1: THE MAIN THEMES OF MICROBIOLOGY
, SECTION A: MULTIPLE CHOICE QUESTIONS (1-45)
1. Which of the following is the most accurate definition of a microorganism?
A) Any living thing that causes disease
B) Any organism that requires a microscope to be visualized
C) Any single-celled life form
D) Any organism that lacks a true nucleus
E) Any organism that reproduces by binary fission
Answer: B
Explanation: Microorganisms are defined by their size—they are too small to be seen
without magnification. While many microorganisms are single-celled and some lack
nuclei, these are not universal characteristics.
2. The term "pathogen" specifically refers to:
A) Any bacterium found on human skin
B) Any virus that infects bacteria
C) Any microorganism capable of causing disease
D) Any organism that requires a host to survive
E) Any microbe used in industrial fermentation
Answer: C
Explanation: Pathogens are disease-causing microorganisms. The term comes from
"pathos" (suffering) and "gen" (produce). Not all microbes are pathogens—most are
harmless or beneficial.
3. Which scientist is credited with first observing bacteria using a simple
microscope?
A) Robert Koch
B) Louis Pasteur
Microbiology: A Systems
Approach, 7th Edition by
Marjorie Kelly Cowan All 1-
25 All Chapters Covered
,Latest Edition
,TABLE OF CONTENTS
Chapter Title Page
1 The Main Themes of Microbiology 3
2 The Chemistry of Biology 20
3 Tools of the Laboratory: Methods for Culturing and Microscopy 40
4 Bacteria and Archaea 61
5 Eukaryotic Cells and Microorganisms 82
6 Viruses and Prions 103
7 Microbial Genetics 127
8 Genetic Analysis and Recombinant DNA Technology 148
9 Microbial Nutrition and Growth 168
10 Microbial Metabolism 193
11 Physical and Chemical Control of Microbes 217
12 Antimicrobial Treatment 244
13 Microbe-Human Interactions: Health and Disease 276
14 Epidemiology of Infectious Diseases 307
15 Host Defenses I: Overview and Innate Immunity 331
16 Host Defenses II: Adaptive Immunity and Immunization 355
17 Disorders in Immunity 379
,Chapter Title Page
18 Diagnosing Infections 404
19 Infectious Diseases of the Skin and Eyes 429
20 Infectious Diseases of the Nervous System 450
21 Infectious Diseases of the Cardiovascular and Lymphatic Systems 469
22 Infectious Diseases of the Respiratory System 492
23 Infectious Diseases of the Gastrointestinal Tract 516
24 Infectious Diseases of the Genitourinary System 541
25 Microbes in Our Environment and One Health 566
CHAPTER 1: THE MAIN THEMES OF MICROBIOLOGY
, SECTION A: MULTIPLE CHOICE QUESTIONS (1-45)
1. Which of the following is the most accurate definition of a microorganism?
A) Any living thing that causes disease
B) Any organism that requires a microscope to be visualized
C) Any single-celled life form
D) Any organism that lacks a true nucleus
E) Any organism that reproduces by binary fission
Answer: B
Explanation: Microorganisms are defined by their size—they are too small to be seen
without magnification. While many microorganisms are single-celled and some lack
nuclei, these are not universal characteristics.
2. The term "pathogen" specifically refers to:
A) Any bacterium found on human skin
B) Any virus that infects bacteria
C) Any microorganism capable of causing disease
D) Any organism that requires a host to survive
E) Any microbe used in industrial fermentation
Answer: C
Explanation: Pathogens are disease-causing microorganisms. The term comes from
"pathos" (suffering) and "gen" (produce). Not all microbes are pathogens—most are
harmless or beneficial.
3. Which scientist is credited with first observing bacteria using a simple
microscope?
A) Robert Koch
B) Louis Pasteur
