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Staphylococci

Total questions: 20

Worksheet time: 6mins

Name
Class
Date
1.

All Staphylococci are aerobes

a)

True

b)

False

2.

All Staphylococci are halophiles

a)

True

b)

False

3.

Which of the following enterotoxins are heat stable?

a)

A-F

b)

G-J

c)

Enterotoxin B

d)

A, B and D only

4.

Which of the following enterotoxins activates the immune system aggresively?

a)

B

b)

F

c)

Both

d)

Neither

5.

Causes menstruating-associated TSS

a)

B

b)

F

c)

Both

d)

Neither

6.

Cytolytic toxin/s

a)

Panton-Valentine Leukocidin

b)

Hemolysins

c)

SLO

d)

All of the above

e)

None of the above

7.

Binds to Fc portion of IgG causing neutralization and blockage of phagocytosis

a)

Protein A

b)

Protein M

c)

Both

d)

Neither

8.

Dissolves clot causing spread of infection

a)

Staphylokinase

b)

Hyaluronidase

c)

Lipase

d)

Coagulase

9.

Large pustules surrounded by a small zone of erythema

a)

Furuncles

b)

Folliculitis

c)

Carbuncles

d)

Bullous impetigo

10.

Extension of folliculitis

a)

Carbuncles

b)

Impetigo

c)

Boils

d)

All of the above

11.

Causes Prosthetic Valve Endocarditis

a)

S. aureus

b)

S. epidermidis

c)

S. saprophyticus

d)

None of the above

12.

Oxacillin resistance is caused by

a)

mecA gene

b)

Coagulase

c)

Slime layer

d)

None of the above

13.

Natural habitat of Staphylococcus that causes UTI in sexually active females

a)

Vagina

b)

Penis

c)

Rectum

d)

Nares

14.

Describes Staphylococcus lugdunensis, except

a)

mecA gene

b)

Nosocomial infection

c)

Slide coagulase +

d)

Community-acquired infection

15.

Vancomycin resistant

a)

S. haemolyticus

b)

S. aureus

c)

S. lugdunensis

d)

S. saprophyticus

16.

Important for Staphylococcus for their survival in sebaceous areas of the body

a)

M Protein

b)

DNAse

c)

Lipase

d)

Enterotoxin

17.

Stimulates Vagus Nerve to induce vomiting and diarrhea

a)

Enterotoxin A

b)

Enterotoxin B

c)

Enterotoxin C

d)

Enterotoxin D

e)

All of the above

18.

Heat stable up to 100C for 1 hour

a)

Enterotoxin A

b)

Enterotoxin B

c)

Enterotoxin C

d)

Enterotoxin D

e)

None of the above

19.

Tube coagulase test positive

a)

S. aureus

b)

S. saprophyticus

c)

S. epidermidis

d)

All of the above

20.

Novobiocin stable

a)

S. aureus

b)

S. epidermidis

c)

S. saprophyticus

d)

None of the above

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