Question 1

The following statements about tuberculosis are all true except:

Accepted Answer

A) Mycobacterium avium-intracellulare causes TB in AIDS patients 
B) the pathogens have long generation time (12-18 hours) 
C) Mycobacterium tuberculosis is the most common causative agent 
D) the pathogens are very sensitive to drying and die quickly in the environment 
A) Mycobacterium avium-intracellulare causes TB in AIDS patients 
B) the pathogens have long generation time (12-18 hours) 
C) Mycobacterium tuberculosis is the most common causative agent 
D) the pathogens are very sensitive to drying and die quickly in the environment D

Question 2

Prevention of pneumococcal pneumonia is difficult because:

Accepted Answer

A) the vaccine only protects against 23 strains 
B) the vaccine covers all the strains,but boosters must be administered 
C) there is no vaccine 
D) the vaccine is only given to adults 
A) the vaccine only protects against 23 strains 
B) the vaccine covers all the strains,but boosters must be administered 
C) there is no vaccine 
D) the vaccine is only given to adults A

Question 3

The mucociliary escalator:

Accepted Answer

A) leads to aspirations of secretions that can cause pneumonia 
B) allows materials in the bronchi to be lifted to the pharynx 
C) is a ring of lymphoid tissue that surround the pharynx 
D) two of these choices 
A) leads to aspirations of secretions that can cause pneumonia 
B) allows materials in the bronchi to be lifted to the pharynx 
C) is a ring of lymphoid tissue that surround the pharynx 
D) two of these choices B

Question 4

Which is characterized by a pseudomembrane forming in the throat

Accepted Answer

A) Diphtheria 
B) Pertussis 
C) Pharyngitis 
D) Laryngitis 
A) Diphtheria 
B) Pertussis 
C) Pharyngitis 
D) Laryngitis

Question 5

Treatment of choice for TB is _____.

Accepted Answer

A) erythromycin and penicillin 
B) isoniazid and rifampin 
C) purified protein derivative 
D) cold fresh air 
A) erythromycin and penicillin 
B) isoniazid and rifampin 
C) purified protein derivative 
D) cold fresh air

Question 6

Acute epiglottitis is invariably caused by:

Accepted Answer

A) a virus 
B) Streptococcus pyogenes 
C) Corynebacterium pseudoinfluenzae 
D) Haemophilus influenzae type B 
A) a virus 
B) Streptococcus pyogenes 
C) Corynebacterium pseudoinfluenzae 
D) Haemophilus influenzae type B

Question 7

Otitis media is caused most often by:

Accepted Answer

A) Streptococcus pneumoniae 
B) Staphylococcus aureus 
C) Haemophilus influenzae 
D) Two of these choices 
A) Streptococcus pneumoniae 
B) Staphylococcus aureus 
C) Haemophilus influenzae 
D) Two of these choices

Question 8

Which of the following statements about pneumonia is incorrect

Accepted Answer

A) Helminths can cause pneumonia. 
B) Walking pneumonia is caused by Legionella pneumophilia. 
C) Chemicals and radiation can cause pneumonia. 
D) Walking pneumonia cannot be prevented by vaccination. 
A) Helminths can cause pneumonia. 
B) Walking pneumonia is caused by Legionella pneumophilia. 
C) Chemicals and radiation can cause pneumonia. 
D) Walking pneumonia cannot be prevented by vaccination.

Question 9

The presence of Bordetella pertussis is confirmed by _____.

Accepted Answer

A) beta colonies on a blood agar plate 
B) sensitivity to penicillin 
C) a reddish pigmented colony 
D) a fluorescent antibody stain 
A) beta colonies on a blood agar plate 
B) sensitivity to penicillin 
C) a reddish pigmented colony 
D) a fluorescent antibody stain

Question 10

Primary atypical pneumonia is caused by:

Accepted Answer

A) Streptococcus pneumoniae 
B) Mycobacterium pneumoniae 
C) Mycoplasma pneumoniae 
D) Klebsiella pneumoniae 
A) Streptococcus pneumoniae 
B) Mycobacterium pneumoniae 
C) Mycoplasma pneumoniae 
D) Klebsiella pneumoniae

Question 11

The pathogen responsible for the disease whooping cough is _____.

Accepted Answer

A) Rhinovirus 
B) Bordetella pertussis 
C) Corynebacterium 
D) Haemophilus 
A) Rhinovirus 
B) Bordetella pertussis 
C) Corynebacterium 
D) Haemophilus

Question 12

Which fungal infection leads to an allergic asthmatic response

Accepted Answer

A) Aspergillosis 
B) Blastomycosis 
C) Cryptococcosis 
D) Histoplasmosis 
A) Aspergillosis 
B) Blastomycosis 
C) Cryptococcosis 
D) Histoplasmosis

Question 13

Which of the following statements related to Rhinoviruses is incorrect

Accepted Answer

A) Rhinoviruses grow best at 33 - 34ᵒC. 
B) Antibiotics are not useful in treating the common cold. 
C) There are at least 113 different Rhinoviruses. 
D) Rhinoviruses are very resistant to acid. 
A) Rhinoviruses grow best at 33 - 34ᵒC. 
B) Antibiotics are not useful in treating the common cold. 
C) There are at least 113 different Rhinoviruses. 
D) Rhinoviruses are very resistant to acid.

Question 14

Which of the following statements about prevention of whooping cough is false

Accepted Answer

A) DTP contains the acellular Pertussis vaccine (Recombinant DNA vaccine). 
B) The whole cell vaccine caused a number of children to die or have brain damage. 
C) The acellular vaccine is safer. 
D) Babies are immunized early because they have no passive immunity from their moms. 
A) DTP contains the acellular Pertussis vaccine (Recombinant DNA vaccine). 
B) The whole cell vaccine caused a number of children to die or have brain damage. 
C) The acellular vaccine is safer. 
D) Babies are immunized early because they have no passive immunity from their moms.

Question 15

Influenza exhibits antigenic drift which involves _____.

Accepted Answer

A) mutations in genes for hemagglutinin and neuraminidase 
B) gene reassortment due to multiple viral infections 
C) mutations in envelope phospholipids 
D) mutations in capsid proteins 
A) mutations in genes for hemagglutinin and neuraminidase 
B) gene reassortment due to multiple viral infections 
C) mutations in envelope phospholipids 
D) mutations in capsid proteins

Question 16

Sinusitis can be caused by:

Accepted Answer

A) Staphylococcus aureus 
B) Streptococcus pneumoniae 
C) Haemophilus influenzae 
D) All of these choices 
A) Staphylococcus aureus 
B) Streptococcus pneumoniae 
C) Haemophilus influenzae 
D) All of these choices

Question 17

Pharyngitis is most often caused by:

Accepted Answer

A) a virus 
B) Streptococcus pyogenes Group A 
C) Staphylococcus aureus 
D) Corynebacterium 
A) a virus 
B) Streptococcus pyogenes Group A 
C) Staphylococcus aureus 
D) Corynebacterium

Question 18

Pontiac fever is a mild form of _____.

Accepted Answer

A) tuberculosis 
B) pneumonia 
C) legionellosis 
D) diphtheria 
A) tuberculosis 
B) pneumonia 
C) legionellosis 
D) diphtheria

Question 19

Which of the following statements about Corynebacterium diphtheriae is INCORRECT

Accepted Answer

A) A prophage carries the exotoxin producing gene. 
B) An epidemic of diphtheria killed numerous people in the former Soviet Union. 
C) The bacteria are Gram-negative rods. 
D) The bacteria are in a palisade arrangement and have metachromatic granules. 
A) A prophage carries the exotoxin producing gene. 
B) An epidemic of diphtheria killed numerous people in the former Soviet Union. 
C) The bacteria are Gram-negative rods. 
D) The bacteria are in a palisade arrangement and have metachromatic granules.

Question 20

Tubercles:

Accepted Answer

A) are white patches when seen on chest x-rays of TB patients 
B) undergo destruction giving a cheesy,caseous appearance 
C) contain live Mycobacterium 
D) all of these choices 
A) are white patches when seen on chest x-rays of TB patients 
B) undergo destruction giving a cheesy,caseous appearance 
C) contain live Mycobacterium 
D) all of these choices

Exam 22: Diseases of the Respiratory System

The following statements about tuberculosis are all true except:

Prevention of pneumococcal pneumonia is difficult because:

The mucociliary escalator:

Which is characterized by a pseudomembrane forming in the throat

Treatment of choice for TB is _____.

Acute epiglottitis is invariably caused by:

Otitis media is caused most often by:

Which of the following statements about pneumonia is incorrect

The presence of Bordetella pertussis is confirmed by _____.

Primary atypical pneumonia is caused by:

The pathogen responsible for the disease whooping cough is _____.

Which fungal infection leads to an allergic asthmatic response

Which of the following statements related to Rhinoviruses is incorrect

Which of the following statements about prevention of whooping cough is false

Influenza exhibits antigenic drift which involves _____.

Sinusitis can be caused by:

Pharyngitis is most often caused by:

Pontiac fever is a mild form of _____.

Which of the following statements about Corynebacterium diphtheriae is INCORRECT

Tubercles:

Scope and History of Microbiology

The Microbiome

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

Host-Microbe Relationships and Disease Processes

Epidemiology and Nosocomial Infections

Innate Host Defenses

Basic Principles of Adaptive Immunity and Immunization

Immune Disorders

Diseases of the Skin and Eyes; Wounds and Bites

Urogenital and Sexually Transmitted Diseases

Oral and Gastrointestinal Diseases

Cardiovascular, Lymphatic, and Systemic Diseases

Diseases of the Nervous System

Environmental Microbiology

Applied Microbiology

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