Question 1

Complications of measles may include pneumonia and encephalitis.

Accepted Answer

A) True 
 B)False

Question 2

The childhood disease that damages the body defenses and is frequently complicated by secondary infections involving mostly Gram-positive cocci is

Accepted Answer

A)  German measles. 
B)  measles. 
C)  mumps. 
D)  chickenpox. 
E)  shingles. 
A)  German measles. 
B)  measles. 
C)  mumps. 
D)  chickenpox. 
E)  shingles.

Question 3

Which is True of MRSA strains?

Accepted Answer

A)  They are all resistant to vancomycin. 
B)  They carry the R plasmid AND they are all resistant to vancomycin. 
C)  They may be susceptible to linezolid. 
D)  The carry the R plasmid AND they may be susceptible to linezolid. 
E)  The carry the F plasmid AND they may be susceptible to linezolid. 
A)  They are all resistant to vancomycin. 
B)  They carry the R plasmid AND they are all resistant to vancomycin. 
C)  They may be susceptible to linezolid. 
D)  The carry the R plasmid AND they may be susceptible to linezolid. 
E)  The carry the F plasmid AND they may be susceptible to linezolid.

Question 4

The rubeola virus contains

Accepted Answer

A)  single-stranded DNA. 
B)  double-stranded DNA. 
C)  single-stranded RNA. 
D)  double-stranded RNA. 
E)  single-stranded RNA OR double-stranded RNA. 
A)  single-stranded DNA. 
B)  double-stranded DNA. 
C)  single-stranded RNA. 
D)  double-stranded RNA. 
E)  single-stranded RNA OR double-stranded RNA.

Question 5

The secretions of the sweat and sebaceous glands provide ________ to the microbiota.

Accepted Answer

A)  water 
B)  amino acids OR water 
C)  lipids AND amino acids 
D)  water, amino acids, AND lipids 
E)  sebum OR amino acids 
A)  water 
B)  amino acids OR water 
C)  lipids AND amino acids 
D)  water, amino acids, AND lipids 
E)  sebum OR amino acids

Question 6

The vector for RMSF is a(n)

Accepted Answer

A)  mosquito. 
B)  flea. 
C)  tick. 
D)  fly. 
E)  deer. 
A)  mosquito. 
B)  flea. 
C)  tick. 
D)  fly. 
E)  deer.

Question 7

The preferred habitat of S. aureus is the

Accepted Answer

A)  nasal chamber. 
B)  throat. 
C)  urethra. 
D)  bladder. 
E)  meninges. 
A)  nasal chamber. 
B)  throat. 
C)  urethra. 
D)  bladder. 
E)  meninges.

Question 8

Which of the signs and symptoms of Rocky Mountain spotted fever is not typical of other diseases that manifest in a similar way?

Accepted Answer

A)  Fever 
B)  Muscle pain 
C)  Headache 
D)  Joint pain 
E)  Rash 
A)  Fever 
B)  Muscle pain 
C)  Headache 
D)  Joint pain 
E)  Rash

Question 9

Which of the following statements regarding S. aureus and S. pyogenes is False?

Accepted Answer

A)  S. aureus appears as clusters of spherical cells while S. pyogenes appears as chains of spherical cells. 
B)  S. aureus stains purple with the Gram stain while S. pyogenes stains pink with this procedure. 
C)  S. aureus is catalase positive and coagulase positive while S. pyogenes is catalase negative and coagulase negative. 
D)  The Fc receptor of S. aureus is protein A while the Fc receptor of S. pyogenes is protein G. 
E)  S. aureus is a facultative anaerobe while S. pyogenes is an obligate fermenter. 
A)  S. aureus appears as clusters of spherical cells while S. pyogenes appears as chains of spherical cells. 
B)  S. aureus stains purple with the Gram stain while S. pyogenes stains pink with this procedure. 
C)  S. aureus is catalase positive and coagulase positive while S. pyogenes is catalase negative and coagulase negative. 
D)  The Fc receptor of S. aureus is protein A while the Fc receptor of S. pyogenes is protein G. 
E)  S. aureus is a facultative anaerobe while S. pyogenes is an obligate fermenter.

Question 10

Which of the following is a fairly reliable method of characterizing strains of S. aureus?

Accepted Answer

A)  Complement fixation 
B)  Protein fingerprint 
C)  Genome typing 
D)  LPS pattern 
E)  All of these 
A)  Complement fixation 
B)  Protein fingerprint 
C)  Genome typing 
D)  LPS pattern 
E)  All of these

Question 11

Why is staphylococcal scalded skin syndrome sometimes fatal?

Accepted Answer

A)  The first line of defense is compromised, putting the patient at risk secondary bacterial infection. 
B)  The first line of defense is compromised, putting the patient at risk of both dehydration and secondary bacterial infection. 
C)  The causative organism is Gram-negative and may cause endotoxic shock. 
D)  Exfoliatin can bind to cardiac cells, causing disruption of the heart rhythm and heart failure. 
E)  The first line of defense is compromised, putting the patient at risk of severe dehydration. 
A)  The first line of defense is compromised, putting the patient at risk secondary bacterial infection. 
B)  The first line of defense is compromised, putting the patient at risk of both dehydration and secondary bacterial infection. 
C)  The causative organism is Gram-negative and may cause endotoxic shock. 
D)  Exfoliatin can bind to cardiac cells, causing disruption of the heart rhythm and heart failure. 
E)  The first line of defense is compromised, putting the patient at risk of severe dehydration.

Question 12

The antimicrobial aspect(s) of the skin is/are

Accepted Answer

A)  dryness. 
B)  saltiness. 
C)  acidity. 
D)  toxicity. 
E)  All of the choices are correct. 
A)  dryness. 
B)  saltiness. 
C)  acidity. 
D)  toxicity. 
E)  All of the choices are correct.

Question 13

Why is Legionella pneumophila detected using immunofluorescence?

Accepted Answer

A)  It stains poorly with conventional dyes. 
B)  It is Gram-non-reactive. 
C)  It is an acid-fast bacterium. 
D)  It lacks a peptidoglycan cell wall. 
E)  It is a virus. 
A)  It stains poorly with conventional dyes. 
B)  It is Gram-non-reactive. 
C)  It is an acid-fast bacterium. 
D)  It lacks a peptidoglycan cell wall. 
E)  It is a virus.

Question 14

Chickenpox and measles are both acquired by the respiratory route.

Accepted Answer

A) True 
 B)False

Question 15

The S. aureus product that causes scalded skin syndrome is

Accepted Answer

A)  exfoliation toxin. 
B)  lipases. 
C)  leukocidins. 
D)  protein M. 
E)  peeling toxin. 
A)  exfoliation toxin. 
B)  lipases. 
C)  leukocidins. 
D)  protein M. 
E)  peeling toxin.

Question 16

The principal species of Staphylococcus found on the skin is

Accepted Answer

A)  aureus. 
B)  acnes. 
C)  epidermidis. 
D)  pyogenes. 
E)  saprophyticus. 
A)  aureus. 
B)  acnes. 
C)  epidermidis. 
D)  pyogenes. 
E)  saprophyticus.

Question 17

Diseases caused by fungi are called mycoses.

Accepted Answer

A) True 
 B)False

Question 18

Please select the True statement regarding impetigo.

Accepted Answer

A)  Signs and symptoms of impetigo result from inflammation in the keratinized outer epidermal layer. 
B)  The causative organism of impetigo is Cutibacterium acnes. 
C)  Patients with impetigo experience fever, pain, and malaise. 
D)  Impetigo is an example of a pyoderma-a superficial skin disease characterized by pus production. 
E)  Treatment of impetigo requires administering at least two different antibiotics. 
A)  Signs and symptoms of impetigo result from inflammation in the keratinized outer epidermal layer. 
B)  The causative organism of impetigo is Cutibacterium acnes. 
C)  Patients with impetigo experience fever, pain, and malaise. 
D)  Impetigo is an example of a pyoderma-a superficial skin disease characterized by pus production. 
E)  Treatment of impetigo requires administering at least two different antibiotics.

Question 19

The portal of entry of Bacillus anthracis is the

Accepted Answer

A)  respiratory tract. 
B)  epidermis. 
C)  gastrointestinal tract. 
D)  epidermis OR gastrointestinal tract. 
E)  respiratory tract, epidermis, OR gastrointestinal tract. 
A)  respiratory tract. 
B)  epidermis. 
C)  gastrointestinal tract. 
D)  epidermis OR gastrointestinal tract. 
E)  respiratory tract, epidermis, OR gastrointestinal tract.

Question 20

Humans are the only reservoir for varicella-zoster virus.

Accepted Answer

A) True 
 B)False

Exam 22: Skin Infections

Complications of measles may include pneumonia and encephalitis.

The childhood disease that damages the body defenses and is frequently complicated by secondary infections involving mostly Gram-positive cocci is

Which is True of MRSA strains?

The rubeola virus contains

The secretions of the sweat and sebaceous glands provide ________ to the microbiota.

The vector for RMSF is a(n)

The preferred habitat of S. aureus is the

Which of the signs and symptoms of Rocky Mountain spotted fever is not typical of other diseases that manifest in a similar way?

Which of the following statements regarding S. aureus and S. pyogenes is False?

Which of the following is a fairly reliable method of characterizing strains of S. aureus?

Why is staphylococcal scalded skin syndrome sometimes fatal?

The antimicrobial aspect(s) of the skin is/are

Why is Legionella pneumophila detected using immunofluorescence?

Chickenpox and measles are both acquired by the respiratory route.

The S. aureus product that causes scalded skin syndrome is

The principal species of Staphylococcus found on the skin is

Diseases caused by fungi are called mycoses.

Please select the True statement regarding impetigo.

The portal of entry of Bacillus anthracis is the

Humans are the only reservoir for varicella-zoster virus.

Humans and the Microbial World

The Molecules of Life

Microscopy and Cell Structure

Dynamics of Microbial Growth

Control of Microbial Growth

Microbial Metabolism: Fueling Cell Growth

The Blueprint of Life, from DNA to Protein

Bacterial Genetics

Biotechnology

Identifying and Classifying Microorganisms

The Diversity of Bacteria and Archaea

The Eukaryotic Members of the Microbial World

Viruses, Viroids, and Prions

The Innate Immune Response

The Adaptive Immune Response

Host-Microbe Interactions

Immunological Disorders

Applications of Immune Responses

Epidemiology

Antimicrobial Medications

Respiratory System Infections

Wound Infections

Digestive System Infections

Blood and Lymphatic Infections

Nervous System Infections

Genitourinary Tract Infections

Microbial Ecology

Environmental Microbiology: Treatment of Water, Wastes, and Polluted Habitats

Food Microbiology

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