Foundation in Microbiology 5ed

1. Microbiology, 9e (Tortora)
Chapter 21
Objective Questions
1)
Which of the following is not normal microbiota of the skin?
A)
Streptococcus
B)
Pityrosporum
C)
Staphylococcus
D)
Propionibacterium
E)
Corynebacterium
2)
An 8-year-old female has scabs and pus-filled vesicles on her face and throat. Three weeks earlier she had visited her
grandmother who had shingles. What infection does the 8-year-old have?
A)
Chickenpox
B)
Measles
C)
Fever blisters
D)
Scabies
E)
German measles
3)
Which of the following pairs is mismatched?
A)

2. Microbiology, 9e (Tortora)
Chapter 21
S. aureus  impetigo
B)
S. pyogenes  erysipelas
C)
P. acnes  acne
D)
P. aeruginosa  otitis externa
E)
None of the above
4)
The etiologic agent of warts is
A)
Papovavirus.
B)
Poxvirus.
C)
Herpesvirus.
D)
Parvovirus
E)
None of the above.
5)
Which of the following is not a characteristic of P. aeruginosa?
A)
Gram-positive rods
B)
Oxidative metabolism
C)
Oxidase positive
D)

3. Microbiology, 9e (Tortora)
Chapter 21
Produce pyocyanin
E)
None of the above

4. Microbiology, 9e (Tortora)
Chapter 21
6)
Which of the following pairs is mismatched?
A)
Pustular rash  smallpox
B)
Koplik spots  rubella
C)
Papular rash  measles
D)
Vesicular rash  chickenpox
E)
None of the above
7)
Which of the following is not transmitted by the respiratory route?
A)
Smallpox
B)
Chickenpox
C)
German measles
D)
Cold sore
E)
None of the above
8)
Which of these is not caused by herpesvirus?
A)
Chickenpox
B)

5. Microbiology, 9e (Tortora)
Chapter 21
Shingles
C)
Keratoconjunctivitis
D)
Smallpox
E)
None of the above
9)
Thrush and vaginitis are caused by
A)
Herpesvirus.
B)
Chlamydia trachomatis.
C)
Candida albicans.
D)
Staphylococcus aureus.
E)
Streptococcus pyogenes.
10)
The greatest single cause of blindness in the world is
A)
Neonatal gonorrheal ophthalmia.
B)
Keratoconjunctivitis.
C)
Trachoma.
D)
Inclusion conjunctivitis.
E)

6. Microbiology, 9e (Tortora)
Chapter 21
Pinkeye.

7. Microbiology, 9e (Tortora)
Chapter 21
11)
Which of the following can be treated with topical chemotherapeutic agents?
A)
Herpes gladiatorium
B)
Sporotrichosis
C)
Dermatomycosis
D)
Rubella
E)
None of the above
12)
Which of the following is not a cause of ringworm?
A)
Microsporum
B)
Trichophyton
C)
Tinea capitis
D)
Epidermophyton
E)
None of the above
13)
Newborns' eyes are treated with an antibiotic when
A)
N. gonorrhoeae is isolated from the eyes.
B)
The mother is blind.

8. Microbiology, 9e (Tortora)
Chapter 21
C)
The mother has genital herpes.
D)
The mother has gonorrhea.
E)
Always.
14)
A possible complication of herpetic keratitis is
A)
Encephalitis.
B)
Fever blisters.
C)
Subacute sclerosing panencephalitis.
D)
Congenital rubella syndrome.
E)
None of the above.
15)
Which of the following is sensitive to penicillin?
A)
Chlamydia
B)
Herpesvirus
C)
Candida
D)
Streptococcus
E)

9. Microbiology, 9e (Tortora)
Chapter 21
Pseudomonas

10. Microbiology, 9e (Tortora)
Chapter 21
16)
Which region of the skin supports the largest bacterial population?
A)
Axilla
B)
Scalp
C)
Forearms
D)
Legs
E)
All are equal
17)
Which infection is caused by S. aureus?
A)
Pimples
B)
Sty
C)
Furuncle
D)
Carbuncle
E)
All of the above
18)
Which of the following is not a characteristic used to identify S. pyogenes?
A)
Coagulase-positive
B)

11. Microbiology, 9e (Tortora)
Chapter 21
Group A cell wall antigen
C)
Group M proteins
D)
Beta-hemolytic
E)
None of the above
19)
Which of the following is not a causative agent of conjunctivitis?
A)
Chlamydia trachomatis
B)
Herpes simplex
C)
Adenovirus
D)
Neisseria gonorrhoeae
E)
Hemophilus aegyptii
20)
In which of the following respects is measles similar to German measles?
A)
Rash
B)
Etiologic agent
C)
Encephalitis as a complication
D)
Congenital complications
E)

12. Microbiology, 9e (Tortora)
Chapter 21
In name only

13. Microbiology, 9e (Tortora)
Chapter 21
21)
Vaccination for rubella is
A)
Not necessary because the disease is mild.
B)
Not necessary if a person has had an infection.
C)
Recommended only for pregnant women.
D)
Recommended for newborns to prevent congenital disease.
E)
None of the above.
22)
All of the following statements about congenital rubella syndrome are true except
A)
It is contracted in utero.
B)
It may be fatal.
C)
It may result in deafness, blindness, and mental retardation.
D)
It doesn't occur with subclinical infections.
E)
All of the above are true.
23)
The etiologic agent of chickenpox.
A)
Herpes simplex
B)

14. Microbiology, 9e (Tortora)
Chapter 21
Herpes zoster
C)
HHV-6
D)
Parvovirus
E)
Poxvirus
24)
The etiologic agent of fifth disease.
A)
Herpes simplex
B)
Herpes zoster
C)
HHV-6
D)
Parvovirus
E)
Poxvirus
25)
The etiologic agent of roseola.
A)
Herpes simplex
B)
Herpes zoster
C)
HHV-6
D)
Parvovirus

15. Microbiology, 9e (Tortora)
Chapter 21
E)
Poxvirus

16. Microbiology, 9e (Tortora)
Chapter 21
26)
The etiologic agent of fever blisters.
A)
Herpes simplex
B)
Herpes zoster
C)
HHV-6
D)
Parvovirus
E)
Poxvirus
27)
Used to treat epidemic herpetic keratitis.
A)
Penicillin
B)
Sulfonamide
C)
Trifluridine
D)
Fungicide
E)
None of the above
28)
Used to treat smallpox.
A)
Penicillin
B)

17. Microbiology, 9e (Tortora)
Chapter 21
Sulfonamide
C)
Trifluridine
D)
Fungicide
E)
None of the above
29)
Used to treat sporotrichosis.
A)
Penicillin
B)
Sulfonamide
C)
Trifluridine
D)
Fungicide
E)
None of the above
30)
Used to treat candidiasis.
A)
Penicillin
B)
Sulfonamide
C)
Trifluridine
D)
Fungicide

18. Microbiology, 9e (Tortora)
Chapter 21
E)
None of the above

19. Microbiology, 9e (Tortora)
Chapter 21
31)
Scabies is a skin disease caused by
A)
A slow virus.
B)
A protozoan.
C)
A mite.
D)
A bacterium.
E)
A prion.
32)
Scabies is transmitted by
A)
Fomites.
B)
Food.
C)
Water.
D)
Soil.
E)
None of the above.
33)
A patient has pus-filled vesicles and scabs on her face, throat, and lower back. She most likely has
A)
Measles.
B)

20. Microbiology, 9e (Tortora)
Chapter 21
Mumps.
C)
Chickenpox.
D)
Rubella.
E)
Smallpox.
34)
Which of the following leads to all the others?
A)
Toxemia
B)
Scalded skin syndrome
C)
Staphylococcal infection
D)
TSST-1
E)
Sudden drop in blood pressure
35)
Herpes gladiatorium is transmitted by
A)
Direct contact.
B)
The respiratory route.
C)
The fecal-oral route.
D)
Insect bites.

21. Microbiology, 9e (Tortora)
Chapter 21
E)
All of the above.

22. Microbiology, 9e (Tortora)
Chapter 21
36)
The patient has a papular rash. Microscopic examination of skin scrapings reveals small 8-legged animals.
A)
Candida
B)
Microsporum
C)
P. aeruginosa
D)
S. aureus
E)
Scabies
37)
The patient has vesicles and scabs over her forehead. Microscopic examination of skin scrapings shows gram-positive
cocci in clusters.
A)
Candida
B)
Microsporum
C)
P. aeruginosa
D)
S. aureus
E)
Scabies
38)
The patient has scaling skin on his fingers. Conidiospores are seen in microscopic examination of skin scrapings.
A)
Candida
B)

23. Microbiology, 9e (Tortora)
Chapter 21
Microsporum
C)
P. aaeruginosa
D)
S. aureus
E)
Scabies
39)
A 45-year-old male has pus-filled vesicles distributed over his back in the upper right quadrant, over his right shoulder,
and upper right quadrant of his chest. His symptoms are most likely due to
A)
Candida albicans.
B)
Herpes simplex virus.
C)
Staphylococcus aureus.
D)
Streptococcus pyogenes.
E)
Varicella-zoster virus.
40)
A 35-year-old female has a red, raised rash on the inside of her thighs. Gram-stained skin scrapings show large budding
cells with pseudohyphae. The infection is caused by
A)
Candida albicans.
B)
Herpes simplex virus.
C)
Staphylococcus aureus.
D)

24. Microbiology, 9e (Tortora)
Chapter 21
Streptococcus pyogenes.
E)
Varicella-zoster virus.

25. Microbiology, 9e (Tortora)
Chapter 21
41)
Cytoplasmic inclusions were observed in a fetus that died in utero after 6 months' gestation. The probable cause of the
fetus's death was
A)
Fifth disease.
B)
Herpes simplex.
C)
Measles.
D)
Staphylococcus aureus.
E)
Streptococcus pyogenes.
42)
Assume that your lab partner swabs the side of his face and used the swab to inoculate a nutrient agar plate. The next
day, he performs a Gram stain on the colonies. They are gram-positive cocci. You advise him that he should next look for
A)
An acid-fast reaction.
B)
A coagulase reaction.
C)
Conidiospores.
D)
Pseudohyphae.
E)
Pseudopods.
43)
Which of the following is incorrectly matched?
A)
Chickenpox  Poxvirus

26. Microbiology, 9e (Tortora)
Chapter 21
B)
Conjunctivitis  Chlamydia trachomatis
C)
Conjunctivitis  Pseudomonas
D)
Infected tissue fluoresces  Dermatomycosis
E)
Opportunistic infection in AIDS patients  Candidiasis
44)
A 17-year-old male has pus-filled cysts on his face and upper back. Microscopic examination reveals gram-positive rods.
This infection is
A)
Acne.
B)
Boils.
C)
Carbuncles.
D)
Impetigo.
E)
Pimples.
45)
A 17-year-old male has pus-filled cysts on his face and upper back. Microscopic examination reveals gram-positive rods.
This infection is caused by
A)
Acanthamoeba.
B)
Herpes simplex virus.
C)
Propionibacterium acnes.

27. Microbiology, 9e (Tortora)
Chapter 21
D)
Staphylococcus aureus.
E)
Streptococcus pyogenes.