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Numbers of gram-positive and gram-negative bacteria

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Reference no: EM13797740

1. The majority of the microorganisms on the surface of the human skin are ________
Gram-positive bacteria.
Gram-negative bacteria.
approximately equal numbers of Gram-positive and Gram-negative bacteria.
Spore-forming bacteria.
Enteric.

2. The outer layer of the skin is the _________ while the deeper layer is the _________
cutaneous, keratin.
dermis, sebum.
mucous, epidermis.
epidermis, dermis.
sebum, keratin.

3. A massive lesion caused by the spread of Staphylococcus aureus infection (often on the neck and upper back) is called a ________
boil.
furuncle.
Carbuncle.
abscess.
pustule.

4. Scalded skin syndrome is caused by exotoxins (exfoliatins) produced by ________
Streptococcus pyogenes.
Staphylococcus aureus.
Propionibacterium acnes.
Pseudomonas aeruginosa.
Demodex folliculorum.

5. Which of the following microorganisms causes scarlet fever?
Staphylococcus aureus
Propionibacterium acnes
Pseudomonas aeruginosa
Demodex folliculorum
Streptococcus pyogenes

6. Which of the following is NOT a characteristic of impetigo?
It is common in children.
It can be caused by Staphylococcus aureus.
It can be caused by Streptococcus pyogenes.
It is highly contagious.
It can be caused by pseudomonads.

7. What bacteria can multiply in blocked skin pores, metabolize sebum, and lead to the development of acne?
Pseudomonas aeruginosa
Propionibacterium
Serratia marcescens
Streptococcus pyogenes
Acne is not caused by a bacterial infection.

8. Burn patients often develop a nosocomial infection caused by ________
Streptococcus epidermis
Staphylococcus aureus
Pseudomonas aeruginosa
Corynebacterium
Candida albicans

9. Koplik's spots develop during infection with ________
rubella virus.
Staphylococcus aureus.
Streptococcus pyogenes.
Varicella-zoster virus.
measles virus.

10. Inflammation of the eye conjunctiva (bacterial conjunctivitis) can be caused by _______
Staphylococcus aureus
Streptococcus pneumoniae
Neisseria gonorrhoeae
Pseudomonas aeruginosa
All of the above

11. Gas gangrene is most likely associated with infection with _______
Staphylococcus aureus.
Clostridium perfringenes.
Streptococcus pneumoniae.
Neisseria gonorrhoeae.
Pseudomonas aeruginosa.

12. What is the leading cause of preventable blindness in the world?
Chlamydia trachomatis
Haemophilus influenzae
Neisseria gonorrhoeae
Staphylococcus aureus
Streptococcus pneumoniae

13. The disease shingles is caused by the same virus that causes ________
measles.
smallpox.
German measles.
chickenpox.
hepatitis.

14. Human papillomavirus causes ________
chickenpox.
measles.
molluscum contagiosum.
warts.
cowpox.

15. Ringworm infection caused by Tinea can cause infections of the ________
groin.
nails.
scalp.
beard area.
All of the above
Section: Matching

16. Acanthamoeba
vaginal yeast infection
skin and genital warts
protozoan keratitis (corneal ulcers)
scabies
ophthalmia neonatorum
trachoma

17. Sarcoptes scabiei
vaginal yeast infection
skin and genital warts
protozoan keratitis (corneal ulcers)
scabies
ophthalmia neonatorum
trachoma

18. Papillomaviruses
vaginal yeast infection
skin and genital warts
protozoan keratitis (corneal ulcers)
scabies
ophthalmia neonatorum
trachoma

19. Chlamydia trachomatis
vaginal yeast infection
skin and genital warts
protozoan keratitis (corneal ulcers)
scabies
ophthalmia neonatorum
trachoma

20. Candida albicans
vaginal yeast infection
skin and genital warts
protozoan keratitis (corneal ulcers)
scabies
ophthalmia neonatorum
trachoma

Reference no: EM13797740

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