Question 1

The first step for directly linking a microbe to a specific disease according to Kochʹs postulates is to

Accepted Answer

A)  compare the blood of a sick animal to blood obtained from a healthy animal. 
B)  culture the blood or other body fluid from a diseased animal using nutrient medium. 
C)  inject a sample of blood or other body fluid from a diseased animal into a healthy animal. 
D)  obtain a sample of blood or other body fluid from a diseased animal. 
E)  isolate microbes from the blood of healthy animals. 
A)  compare the blood of a sick animal to blood obtained from a healthy animal. 
B)  culture the blood or other body fluid from a diseased animal using nutrient medium. 
C)  inject a sample of blood or other body fluid from a diseased animal into a healthy animal. 
D)  obtain a sample of blood or other body fluid from a diseased animal. 
E)  isolate microbes from the blood of healthy animals.

Question 2

Microbes are associated with life-sustaining benefits as well as life-threatening diseases.

Accepted Answer

A) True 
 B)False

Question 3

Normal microbiota are typically found in and on all the following body locations EXCEPT the

Accepted Answer

A)  upper respiratory system. 
B)  skin. 
C)  mouth. 
D)  blood. 
E)  colon. 
A)  upper respiratory system. 
B)  skin. 
C)  mouth. 
D)  blood. 
E)  colon.

Question 4

Microorganisms are involved in each of the following processes EXCEPT

Accepted Answer

A)  O₂ production. 
B)  infection. 
C)  smog production. 
D)  decomposition of organic material. 
E)  food production. 
A)  O₂ production. 
B)  infection. 
C)  smog production. 
D)  decomposition of organic material. 
E)  food production.

Question 5

Classification of organisms into three domains is based on

Accepted Answer

A)  the number of cells in the organism. 
B)  cellular proteins. 
C)  the presence of a cell wall. 
D)  cellular organization. 
E)  nutritional requirements. 
A)  the number of cells in the organism. 
B)  cellular proteins. 
C)  the presence of a cell wall. 
D)  cellular organization. 
E)  nutritional requirements.

Question 6

Proof that a microbe could cause disease was provided by

Accepted Answer

A)  Semmelweis. 
B)  Pasteur. 
C)  Koch. 
D)  Lister. 
E)  Wasserman. 
A)  Semmelweis. 
B)  Pasteur. 
C)  Koch. 
D)  Lister. 
E)  Wasserman.

Question 7

Which of the following findings was essential for Edward Jennerʹs vaccination process?

Accepted Answer

A)  Someone who recovers from a disease will not acquire that disease again. 
B)  Exposure to a milder disease form may produce immunity. 
C)  Pathogenic microorganisms infect all humans and animals in the same manner. 
D)  Disease is caused by viruses. 
E)  A weakened microorganism will not cause disease. 
A)  Someone who recovers from a disease will not acquire that disease again. 
B)  Exposure to a milder disease form may produce immunity. 
C)  Pathogenic microorganisms infect all humans and animals in the same manner. 
D)  Disease is caused by viruses. 
E)  A weakened microorganism will not cause disease.

Question 8

The term used to describe a disease-causing microorganism is

Accepted Answer

A)  pathogen. 
B)  bacterium. 
C)  infection. 
D)  microbe. 
E)  virus. 
A)  pathogen. 
B)  bacterium. 
C)  infection. 
D)  microbe. 
E)  virus.

Question 9

Regarding Louis Pasteurʹs experiments with the S-neck flask, which of the following statements is TRUE?

Accepted Answer

A)  All preexisting microorganisms were killed. 
B)  A food source was provided. 
C)  Air exchange was involved. 
D)  The possibility of contamination was removed. 
E)  All of the answer choices are correct. 
A)  All preexisting microorganisms were killed. 
B)  A food source was provided. 
C)  Air exchange was involved. 
D)  The possibility of contamination was removed. 
E)  All of the answer choices are correct.

Question 10

Which of the following statements about biofilms is FALSE?

Accepted Answer

A)  Biofilms on medical devices cause infections. 
B)  Biofilms in pipes can block the flow of water. 
C)  Biofilms on rocks provide food for animal life. 
D)  Compared to free-living bacteria, biofilms are more sensitive to antibiotics. 
E)  Biofilms in your body protect mucous membranes from harmful microbes. 
A)  Biofilms on medical devices cause infections. 
B)  Biofilms in pipes can block the flow of water. 
C)  Biofilms on rocks provide food for animal life. 
D)  Compared to free-living bacteria, biofilms are more sensitive to antibiotics. 
E)  Biofilms in your body protect mucous membranes from harmful microbes.

Question 11

Spontaneous generation refers to living cells arising only from other living cells.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following is NOT a domain in the three-domain system?

Accepted Answer

A)  archaea 
B)  eukarya 
C)  bacteria 
D)  animalia 
A)  archaea 
B)  eukarya 
C)  bacteria 
D)  animalia

Question 13

A student has obtained a sample of pond water for study. Using the high -power lens, he observes several cells with nuclei. He can conclude that the cells are NOT bacteria.

Accepted Answer

A) True 
 B)False

Question 14

Microorganisms are essential to our life. Each of the following is an example of a beneficial function of microorganisms EXCEPT

Accepted Answer

A)  agriculture. 
B)  alternative fuel production. 
C)  gene therapy. 
D)  increased number of illnesses. 
E)  bioremediation. 
A)  agriculture. 
B)  alternative fuel production. 
C)  gene therapy. 
D)  increased number of illnesses. 
E)  bioremediation.

Question 15

Which physician is first associated with vaccination?

Accepted Answer

A)  Ehrlich 
B)  Jenner 
C)  Escherich 
D)  Lister 
E)  Koch 
A)  Ehrlich 
B)  Jenner 
C)  Escherich 
D)  Lister 
E)  Koch

Question 16

The use of phenol (carbolic acid) as a wound disinfectant was first practiced by

Accepted Answer

A)  Pasteur. 
B)  Lister. 
C)  Holmes. 
D)  Koch. 
E)  Semmelweis. 
A)  Pasteur. 
B)  Lister. 
C)  Holmes. 
D)  Koch. 
E)  Semmelweis.

Question 17

Penicillin was discovered by accident by

Accepted Answer

A)  Alexander Fleming. 
B)  Joseph Lister. 
C)  Edward Jenner. 
D)  Robert Koch. 
E)  Paul Ehrich. 
A)  Alexander Fleming. 
B)  Joseph Lister. 
C)  Edward Jenner. 
D)  Robert Koch. 
E)  Paul Ehrich.

Question 18

The major food producers for other living organisms is/are

Accepted Answer

A)  higher plants. 
B)  cyanobacteria. 
C)  algae. 
D)  higher plants and algae. 
E)  higher plants, cyanobacteria, and algae. 
A)  higher plants. 
B)  cyanobacteria. 
C)  algae. 
D)  higher plants and algae. 
E)  higher plants, cyanobacteria, and algae.

Question 19

Anton van Leeuwenhoek was the first microbiologist to use a microscope to examine environmental samples for the presence of microorganisms.

Accepted Answer

A) True 
 B)False

Exam 1: The Microbial World and You

The first step for directly linking a microbe to a specific disease according to Kochʹs postulates is to

Microbes are associated with life-sustaining benefits as well as life-threatening diseases.

Normal microbiota are typically found in and on all the following body locations EXCEPT the

Microorganisms are involved in each of the following processes EXCEPT

Classification of organisms into three domains is based on

Proof that a microbe could cause disease was provided by

Which of the following findings was essential for Edward Jennerʹs vaccination process?

The term used to describe a disease-causing microorganism is

Regarding Louis Pasteurʹs experiments with the S-neck flask, which of the following statements is TRUE?

Which of the following statements about biofilms is FALSE?

Spontaneous generation refers to living cells arising only from other living cells.

Which of the following is NOT a domain in the three-domain system?

A student has obtained a sample of pond water for study. Using the high -power lens, he observes several cells with nuclei. He can conclude that the cells are NOT bacteria.

Microorganisms are essential to our life. Each of the following is an example of a beneficial function of microorganisms EXCEPT

Which physician is first associated with vaccination?

The use of phenol (carbolic acid) as a wound disinfectant was first practiced by

Penicillin was discovered by accident by

The major food producers for other living organisms is/are

Anton van Leeuwenhoek was the first microbiologist to use a microscope to examine environmental samples for the presence of microorganisms.

Chemical Principles

Observing Microorganisms Through a Microscope

Functional Anatomy of Prokaryotic and Eukaryotic Cells

Microbial Metabolism

Microbial Growth

The Control of Microbial Growth

Microbial Genetics

Biotechnology and Dna Technology

Classification of Microorganisms

The Prokaryotes: Domains Bacteria and Archaea

The Eukaryotes: Fungi, Algae, Protozoa, and Helminths

Viruses, Viroids, and Prions

Principles of Disease and Epidemiology

Microbial Mechanisms of Pathogenicity

Adaptive Immunity: Specific Defenses of the Host

Practical Applications of Immunology

Disorders Associated With the Immune System

Antimicrobial Drugs

Microbial Diseases of the Skin and Eyes

Microbial Diseases of the Nervous System

Microbial Diseases of the Cardiovascular and Lymphatic Systems

Microbial Diseases of the Respiratory System

Microbial Diseases of the Digestive System

Microbial Disease of the Urinary and Reproductive Systems

Environmental Microbiology

Applied and Industrial Microbiology

Innate Immunity: Nonspecific Defenses of the Host

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