Question 1

Even though mycoplasmas pass through filters that normally trap bacteria, they are known to be bacteria, not viruses, because they

Accepted Answer

A)  contain both DNA and RNA. 
B)  synthesize peptidoglycan. 
C)  divide by binary fission. 
D)  contain both DNA and RNA and divide by binary fission. 
E)  synthesize peptidoglycan and divide by snapping division. 
A)  contain both DNA and RNA. 
B)  synthesize peptidoglycan. 
C)  divide by binary fission. 
D)  contain both DNA and RNA and divide by binary fission. 
E)  synthesize peptidoglycan and divide by snapping division. D

Question 2

A young man who works on a ranch and lives in the log bunkhouse experiences sudden fever with muscle aches. A few days later he begins to cough and have difficulty breathing, and goes to an urgent care clinic. His blood pressure is low. A blood sample reveals a low platelet count. A Gram stain of a sputum sample shows only a few small bacteria present. Which of the following is the most likely infecting agent?

Accepted Answer

A)  Bacillus anthracis 
B)  Hantavirus 
C)  Histoplasma capsulatum 
D)  influenza 
E)  Mycoplasma pneumonia 
A)  Bacillus anthracis 
B)  Hantavirus 
C)  Histoplasma capsulatum 
D)  influenza 
E)  Mycoplasma pneumonia B

Question 3

Haemophilus influenzae is a common cause of sinus infections.

Accepted Answer

A) True 
 B)False  True

Question 4

The attachment protein for almost all rhinoviruses is (BCG/ICAM-1/IgA). (Be sure your answer is in uppercase letters.)

Accepted Answer

The answer of The attachment protein for almost all rhinoviruses...

Question 5

Which of the following statements is TRUE regarding tuberculosis?

Accepted Answer

A)  It occurs only in the lungs. 
B)  Several hundred cells are required for infection. 
C)  It remains viable in dried aerosol droplets for up to eight months. 
D)  Only virulent strains of Mycobacterium tuberculosis produce mycolic acid. 
E)  The immune system is not affected by the infection. 
A)  It occurs only in the lungs. 
B)  Several hundred cells are required for infection. 
C)  It remains viable in dried aerosol droplets for up to eight months. 
D)  Only virulent strains of Mycobacterium tuberculosis produce mycolic acid. 
E)  The immune system is not affected by the infection.

Question 6

A pneumonia caused by Gram-positive diplococci is known as

Accepted Answer

A)  primary atypical pneumonia. 
B)  pleurisy. 
C)  pneumocystic pneumonia. 
D)  pneumonic plague. 
E)  pneumococcal pneumonia. 
A)  primary atypical pneumonia. 
B)  pleurisy. 
C)  pneumocystic pneumonia. 
D)  pneumonic plague. 
E)  pneumococcal pneumonia.

Question 7

Otitis media is a bacterial infection of the (ear/pharynx/sinuses).

Accepted Answer

The answer of Otitis media is a bacterial infection of...

Question 8

The majority of cases of pneumonia are caused by

Accepted Answer

A)  Mycoplasma pneumoniae. 
B)  Klebsiella pneumoniae. 
C)  Haemophilus influenzae. 
D)  Streptococcus pneumoniae. 
E)  Chlamydophila pneumoniae. 
A)  Mycoplasma pneumoniae. 
B)  Klebsiella pneumoniae. 
C)  Haemophilus influenzae. 
D)  Streptococcus pneumoniae. 
E)  Chlamydophila pneumoniae.

Question 9

Why is immunity to the common cold so difficult to develop, either naturally or through vaccines?

Accepted Answer

The primary reason that immunity general

Question 10

Which of the following diseases is almost diagnostic for AIDS?

Accepted Answer

A)  blastomycosis 
B)  coccidioidomycosis 
C)  Pneumocystis pneumonia 
D)  histoplasmosis 
E)  Hantavirus pulmonary syndrome 
A)  blastomycosis 
B)  coccidioidomycosis 
C)  Pneumocystis pneumonia 
D)  histoplasmosis 
E)  Hantavirus pulmonary syndrome

Question 11

Elongation factor, a protein required for eukaryotic (transcription/translation/expression), is the cellular target of the toxin produced by Corynebacterium diphtheriae.

Accepted Answer

The answer of Elongation factor, a protein required for eukaryotic...

Question 12

Describe the pathogenesis of tuberculosis, paying special attention to the characteristics of Mycobacterium tuberculosis that make it so pathogenic.

Accepted Answer

Mycobacterium tuberculosis is an extreme

Question 13

What is the primary determinant of virulence in Streptococcus pneumoniae?

Accepted Answer

A)  the presence of a particular Lancefield antigen 
B)  the production of pneumolysin 
C)  the presence of a polysaccharide capsule 
D)  the ability to lyse red blood cells 
E)  strain-specific teichoic acids in its cell wall 
A)  the presence of a particular Lancefield antigen 
B)  the production of pneumolysin 
C)  the presence of a polysaccharide capsule 
D)  the ability to lyse red blood cells 
E)  strain-specific teichoic acids in its cell wall

Question 14

The structure indicated by the arrow connects the middle ear to what part of the respiratory system?

Accepted Answer

A)  nasal cavity 
B)  larynx 
C)  pharynx 
D)  sinuses 
E)  trachea 
A)  nasal cavity 
B)  larynx 
C)  pharynx 
D)  sinuses 
E)  trachea

Question 15

Otitis media is more common in adults than children because of differences in the anatomy of the head.

Accepted Answer

A) True 
 B)False

Question 16

Pneumocystis jiroveci infects only immunocompromised patients.

Accepted Answer

A) True 
 B)False

Question 17

The designation "group A," used to help classify Streptococcus pyogenes, refers to this bacterium's

Accepted Answer

A)  Lancefield antigen. 
B)  hemolysis pattern. 
C)  M protein. 
D)  type of streptokinase produced. 
E)  disease associations. 
A)  Lancefield antigen. 
B)  hemolysis pattern. 
C)  M protein. 
D)  type of streptokinase produced. 
E)  disease associations.

Question 18

A nursing student develops a positive reaction to the tuberculin skin test. A history reveals possible exposure to patients with tuberculosis. A sputum sample is acid-fast negative. When asked for vaccination records, the student reports that childhood vaccination records were lost when the family emigrated from a Southeast Asian country. What is the best explanation for the test results?

Accepted Answer

A)  The student has been infected with Mycobacterium tuberculosis. 
B)  The student has been exposed to Mycobacterium tuberculosis. 
C)  The student is not infected. 
D)  The student has been exposed to Mycobacterium tuberculosis or was vaccinated with BCG vaccine. 
E)  No conclusion is possible with the information provided. 
A)  The student has been infected with Mycobacterium tuberculosis. 
B)  The student has been exposed to Mycobacterium tuberculosis. 
C)  The student is not infected. 
D)  The student has been exposed to Mycobacterium tuberculosis or was vaccinated with BCG vaccine. 
E)  No conclusion is possible with the information provided.

Question 19

The "common cold" is so common because there of the large number of viruses that cause it.

Accepted Answer

A) True 
 B)False

Question 20

When Mycobacterium tuberculosis spreads to sites such as the bone marrow and spleen it results in (disseminated/secondary/reactivated) tuberculosis.

Accepted Answer

The answer of When Mycobacterium tuberculosis spreads to sites such...

Exam 22: Microbial Diseases of the Respiratory System

Even though mycoplasmas pass through filters that normally trap bacteria, they are known to be bacteria, not viruses, because they

Haemophilus influenzae is a common cause of sinus infections.

The attachment protein for almost all rhinoviruses is (BCG/ICAM-1/IgA). (Be sure your answer is in uppercase letters.)

Which of the following statements is TRUE regarding tuberculosis?

A pneumonia caused by Gram-positive diplococci is known as

Otitis media is a bacterial infection of the (ear/pharynx/sinuses).

The majority of cases of pneumonia are caused by

Why is immunity to the common cold so difficult to develop, either naturally or through vaccines?

Which of the following diseases is almost diagnostic for AIDS?

Elongation factor, a protein required for eukaryotic (transcription/translation/expression), is the cellular target of the toxin produced by Corynebacterium diphtheriae.

Describe the pathogenesis of tuberculosis, paying special attention to the characteristics of Mycobacterium tuberculosis that make it so pathogenic.

What is the primary determinant of virulence in Streptococcus pneumoniae?

The structure indicated by the arrow connects the middle ear to what part of the respiratory system?

Otitis media is more common in adults than children because of differences in the anatomy of the head.

Pneumocystis jiroveci infects only immunocompromised patients.

The designation "group A," used to help classify Streptococcus pyogenes, refers to this bacterium's

The "common cold" is so common because there of the large number of viruses that cause it.

When Mycobacterium tuberculosis spreads to sites such as the bone marrow and spleen it results in (disseminated/secondary/reactivated) tuberculosis.

A Brief History of Microbiology

The Chemistry of Microbiology

Cell Structure and Function

Microscopy, Staining, and Classification

Microbial Metabolism

Microbial Nutrition and Growth

Microbial Genetics

Recombinant DNA Technology

Controlling Microbial Growth in the Environment

Controlling Microbial Growth in the Body: Antimicrobial Drugs

Characterizing and Classifying Prokaryotes

Characterizing and Classifying Eukaryotes

Characterizing and Classifying Viruses, Viroids, and Prions

Infection, Infectious Diseases, and Epidemiology

Innate Immunity

Adaptive Immunity

Immunization and Immune Testing

Immune Disorders

Microbial Diseases of the Skin and Wounds

Microbial Diseases of the Nervous System and Eyes

Microbial Cardiovascular and Systemic Diseases

Microbial Diseases of the Digestive System

Microbial Diseases of the Urinary and Reproductive Systems

Applied and Industrial Microbiology

Microbial Ecology and Microbiomes

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