Question 1

Iatrogenic diseases

Accepted Answer

A)  include nosocomial infections 
B)  have no known causes 
C)  can be caused by chemicals, physical agents or viruses 
D)  are present at birth 
A)  include nosocomial infections 
B)  have no known causes 
C)  can be caused by chemicals, physical agents or viruses 
D)  are present at birth

Question 2

Sudden or severe onset of signs and symptoms during acme is referred to as

Accepted Answer

A)  incubation 
B)  fulminating 
C)  prodrome 
D)  decline 
A)  incubation 
B)  fulminating 
C)  prodrome 
D)  decline

Question 3

Endotoxins

Accepted Answer

A)  are more powerful than exotoxins 
B)  are unstable 
C)  have nonspecific effects such as fever 
D)  are actively excreted into medium 
A)  are more powerful than exotoxins 
B)  are unstable 
C)  have nonspecific effects such as fever 
D)  are actively excreted into medium

Question 4

Which of the following is not a stage of an infectious disease?

Accepted Answer

A)  invasive 
B)  incubation 
C)  syndrome 
D)  prodromal 
A)  invasive 
B)  incubation 
C)  syndrome 
D)  prodromal

Question 5

The microorganism Staphylococcus aureus causes which condition?

Accepted Answer

A)  gas gangrene 
B)  botulism 
C)  scalded skin syndrome 
D)  scarlet fever 
A)  gas gangrene 
B)  botulism 
C)  scalded skin syndrome 
D)  scarlet fever

Question 6

Giardia intestinalis,a protozoan,produces the following virulence factor:

Accepted Answer

A)  adhesive disc 
B)  aflatoxin 
C)  beta-hemolysin 
D)  coagulase 
A)  adhesive disc 
B)  aflatoxin 
C)  beta-hemolysin 
D)  coagulase

Question 7

The spreading of exotoxins from the site of infection via the blood is called:

Accepted Answer

A)  septicemia 
B)  toxemia 
C)  colonization 
D)  adherence 
A)  septicemia 
B)  toxemia 
C)  colonization 
D)  adherence

Question 8

Transposal of virulence is all of the following except

Accepted Answer

A)  a laboratory technique in which a pathogen is passed from its normal host to a new host 
B)  involves animal passaging experiments to adapt a pathogen to its normal host 
C)  was used by Pasteur to prepare rabies virus 
D)  increases the virulence for the new host but may reduce the virulence in the normal host 
A)  a laboratory technique in which a pathogen is passed from its normal host to a new host 
B)  involves animal passaging experiments to adapt a pathogen to its normal host 
C)  was used by Pasteur to prepare rabies virus 
D)  increases the virulence for the new host but may reduce the virulence in the normal host

Question 9

Diseases in which permanent damage occurs produce:

Accepted Answer

A)  toxemia 
B)  septicemia 
C)  sequelae 
D)  syndromes 
A)  toxemia 
B)  septicemia 
C)  sequelae 
D)  syndromes

Question 10

Attenuation

Accepted Answer

A)  is the increase in the pathogenicity of a microbe 
B)  is the process that weakens the disease-producing ability of a pathogen 
C)  does not affect the capacity to produce disease 
D)  is the process that decreases the number of organisms that enter the body 
A)  is the increase in the pathogenicity of a microbe 
B)  is the process that weakens the disease-producing ability of a pathogen 
C)  does not affect the capacity to produce disease 
D)  is the process that decreases the number of organisms that enter the body

Question 11

Which of the following statements about host-microbes is true?

Accepted Answer

A)  a host is any organism that harbors no other organism 
B)  infestation refers to the presence of larger parasites 
C)  in mutualism neither of the two species benefits from the relationship 
D)  virulence is defined as the capacity to produce disease 
A)  a host is any organism that harbors no other organism 
B)  infestation refers to the presence of larger parasites 
C)  in mutualism neither of the two species benefits from the relationship 
D)  virulence is defined as the capacity to produce disease

Question 12

A secondary infection that occurs after the use of broad-spectrum antibiotics and the subsequent destruction of the normal microbiota would be considered a

Accepted Answer

A)  sapremia 
B)  prodrome 
C)  superinfection 
D)  mixed infection 
A)  sapremia 
B)  prodrome 
C)  superinfection 
D)  mixed infection

Question 13

A symptom

Accepted Answer

A)  is present during the convalescent stage 
B)  can be observed or felt only by the patient 
C)  can be observed by examination of the patient 
D)  only occurs during invasive infections 
A)  is present during the convalescent stage 
B)  can be observed or felt only by the patient 
C)  can be observed by examination of the patient 
D)  only occurs during invasive infections

Question 14

All of the following pertain to microbial virulence except

Accepted Answer

A)  varies among different microbial species 
B)  varies within the same species of a pathogen 
C)  increases with animal passage 
D)  increases by attenuation 
A)  varies among different microbial species 
B)  varies within the same species of a pathogen 
C)  increases with animal passage 
D)  increases by attenuation

Question 15

Symbiosis is an association between

Accepted Answer

A)  two or more species 
B)  one or two species 
C)  two or more hosts 
D)  no species but all hosts 
A)  two or more species 
B)  one or two species 
C)  two or more hosts 
D)  no species but all hosts

Question 16

Noncommunicable infectious diseases

Accepted Answer

A)  are especially common among young children 
B)  include Klebsiella pneumonia which is only slightly contagious 
C)  are not spread form one host to another 
D)  two of the above 
A)  are especially common among young children 
B)  include Klebsiella pneumonia which is only slightly contagious 
C)  are not spread form one host to another 
D)  two of the above

Question 17

Which of the following must be true in order to satisfy Koch's postulates?

Accepted Answer

A)  causative agent must be observed in a small percentage of cases of disease 
B)  must be isolated from hosts that are not inoculated with the pure culture 
C)  when pure cultures inoculated in healthy hosts, they do not show disease 
D)  causative agent must be isolated from diseased host and grown in pure culture 
A)  causative agent must be observed in a small percentage of cases of disease 
B)  must be isolated from hosts that are not inoculated with the pure culture 
C)  when pure cultures inoculated in healthy hosts, they do not show disease 
D)  causative agent must be isolated from diseased host and grown in pure culture

Question 18

Streptococcus pyogenes is a causative agent of:

Accepted Answer

A)  scarlet fever 
B)  bacillary dysentery 
C)  anthrax 
D)  diphtheria 
A)  scarlet fever 
B)  bacillary dysentery 
C)  anthrax 
D)  diphtheria

Question 19

Normal microflora

Accepted Answer

A)  can be found in the stomach and are adapted to acidic conditions 
B)  may be permanent or transient 
C)  may be responsible for opportunistic infections in immuno-compromised individuals 
D)  two of the above 
A)  can be found in the stomach and are adapted to acidic conditions 
B)  may be permanent or transient 
C)  may be responsible for opportunistic infections in immuno-compromised individuals 
D)  two of the above

Question 20

Infection that does not produce a full set of signs and symptoms is called:

Accepted Answer

A)  mixed infection 
B)  secondary infection 
C)  superinfection 
D)  inapparent infection 
A)  mixed infection 
B)  secondary infection 
C)  superinfection 
D)  inapparent infection

Exam 14: Host-Microbe Relationships and Disease Processes

Iatrogenic diseases

Sudden or severe onset of signs and symptoms during acme is referred to as

Endotoxins

Which of the following is not a stage of an infectious disease?

The microorganism Staphylococcus aureus causes which condition?

Giardia intestinalis,a protozoan,produces the following virulence factor:

The spreading of exotoxins from the site of infection via the blood is called:

Transposal of virulence is all of the following except

Diseases in which permanent damage occurs produce:

Attenuation

Which of the following statements about host-microbes is true?

A secondary infection that occurs after the use of broad-spectrum antibiotics and the subsequent destruction of the normal microbiota would be considered a

A symptom

All of the following pertain to microbial virulence except

Symbiosis is an association between

Noncommunicable infectious diseases

Which of the following must be true in order to satisfy Koch's postulates?

Streptococcus pyogenes is a causative agent of:

Normal microflora

Infection that does not produce a full set of signs and symptoms is called:

Scope and History of Microbiology

Fundamentals of Chemistry

Microscopy and Staining

Characteristics of Prokaryotic and Eukaryotic Cells

Essential Concepts of Metabolism

Growth and Culturing of Bacteria

Microbial Genetics

Gene Transfer and Genetic Engineering

An Introduction to Taxonomy: the Bacteria

Viruses

Eukaryotic Microorganisms and Parasites

Sterilization and Disinfection

Antimicrobial Therapy

Epidemiology and Nosocomial Infections

Innate Host Defenses

Immunology I: Basic Principles of Adaptive Immunity and Immunization

Immunolgy Ii: Immunological Disorders and Tests

Diseases of the Skin and Eyes; Wounds and Bites

Urogenital and Sexually Transmitted Diseases

Diseases of the Respiratory System

Oral and Gastrointestinal Diseases

Cardiovascular, lymphatic and Systemic Disease

Diseases of the Nervous System

Environmental Microbiology

Applied Microbiology

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