You can find the answer of these multiple choice questions related to bacterial skin infections at the end of this blog post. Write down your answers and cross check with the answer key provided.
MCQ Bacteriology 39: A massive lesion caused by the spread of Staphylococcus aureus infection (often on the neck and upper back) is called:
a. Boil
b. Abscess
c. Furuncle
d.Carbuncle
e. Pustule
MCQ Bacteriology 40: Scalded skin syndrome is caused by exotoxin (exfoliatins) produced by:
a. Streptococcus pyogens
b. Pseudomonas aeruginosa
c. Staphylococcus aureus
d. Propionibacterium acne
e. Demodex folliculorum
MCQ Bacteriology 41: Which of the following microorganisms causes scarlet fever?
a. Streptococcus pyogens
b. Pseudomonas aeruginosa
c. Staphylococcus aureus
d. Propionibacterium acne
e. Demodex folliculorum
MCQ Bacteriology 42: The pus producing skin infections (pyoderma) can be caused by
a. Staphylococci
b. Streptococci
c. Corynebacteria
d. A combination of staphylococci, streptococci and corynebacteria
e. All of these
MCQ Bacteriology 43: Which of the following is not the characteristics of impetigo?
a. Common in children
b. Can be caused by Staphylococcus aureus
c. Can be caused by Streptococcus pyogenes
d. Is highly contagious
e. Can be caused by pseudomonads
MCQ Bacteriology 44: Burn patients often develop nosocomial infection caused by:
a. Staphylococcus epidermis
b. Corynebacterium spp.
c. Staphylococcus aureus
d. Candida albicans
e. Pseudomonas aeruginosa
MCQ Bacteriology 45: The bacteria that multiply in blocked skin pores, metabolize sebum, and can lead to the development of acne are:
a. Pseudomonas aeruginosa
b. Propionibacterium spp.
c. Serratia marcescens
d. Streptococcus pyogenes
e. Acne is not caused by bacterial infection
MCQ Bacteriology 46: Bacterial conjunctivitis (inflammation of the eye conjunctiva) can be caused by:
a. Staphylococcus aureus
b. Streptococcus pneumoniae
c. Neisseria gonorrhoeae
d. Pseudomonas aeruginosa
e. All of the above bacteria can cause conjunctivitis
MCQ Bacteriology 47: The leading cause of preventable blindness in the world is caused by:
a. Chlamydia trachomatis
b. Haemophilus influenzae
c. Neisseria gonorrhoeae
d Staphylococcus aureus
e. Streptococcus pneumoniae
MCQ Bacteriology 48: Gas gangrene is most likely associated with infection with:
a. Staphylococcus aureus
b. Clostridium perfringenes
c. Streptococcus pneumoniae
d. Neisseria gonorrhoeae
e. Pseudomonas aeruginosaa
Answer Key:
39. c. Furuncle
40.c. Staphylococcus aureus
41.a. Streptococcus pyogens
42.e. All of these
43.e. Can be caused by pseudomonads
44.e. Pseudomonas aeruginosa
45.b. Propionibacterium spp.
46. e. All of the above bacteria can cause conjunctivitis
47.a.Chlamydia trachomatis
48. b. Clostridium perfringenes
Test your understanding in Bacteriology. Try our dedicated MCQ Quiz section for Bacteriology.
Acharya Tankeshwar
Hello, thank you for visiting my blog. I am Tankeshwar Acharya. Blogging is my passion. As an asst. professor, I am teaching microbiology and immunology to medical and nursing students at PAHS, Nepal. I have been working as a microbiologist at Patan hospital for more than 10 years.Keep Reading
7 responses to “MCQs Microbiology: Bacteriology with Answers”
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1.a
2.b (but, as i have known, Gram stain doesn’t give color because of Peptidoglycan layer. Gram stain stains cell on the basis of lipid content on cell wall.)
3.a
4. i think it’s a. But option d is also susceptible.
5.a
6.c (is it correct?)
7.d
8.
9.
10.b
1.d 2.d 3.a 4.c 5.a 6.c 7.c 8d. 9.d 10. b
The blood exam of a patient with brucellosis and toxoplasmosis positive results required by physician for blood culture and in culture proteous has been grown why the real factor of brucellosis which is brucella not grown and this has been repeated many times. I do need your consults regarding the issue.
Thanks for your attention
Proteus give blood culture positive within 24 hours of incubation. While brucella required long incubation period as up to 14 days. Patient may have bacterimia with both bacteria and proteus overcome brucella growth in blood bottle.
you are provide wrong answers
Dear Narayan
Sorry for the inconvenience caused. Can you please help me by providing specific information, which key is wrong. We will correct it ASAP.
Hi Sir
Could you please let me know the name of the book where you got these questions ?