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Flashcards in Gram+cocci Deck (24):
1

What allows S. Epidermidis to adhere to valves?

Polysaccharide slime

2

Production of what allows viridians streptococcus to cause dental caries?

Acid

3

Gram positive cocci in chains and do not show hemolysis on blood agar may cause ....?

Endocarditis

4

What is the virulence factor of Staphylococcus aureus?

Protein A

5

What is the virulence factor of streptococcus pneumonia?

Capsule

6

Which of the following is part of the normal flora in the skin?

Staphylococcus epidermidis

7

Which gram positive diplococcic causes meningitis?

S. pneumonia

8

which of the following protects the skin ?

Staphylococcus Spp.

9

what is the function of panton-valentine leucicidin in staphylococcus aureus ?

Lysis of PMN

10

What is the clumping factor in staphylococcus aureus involved in?

clot formation

11

What allows staphylococcus epidermidis to adhere to artificial heart valves, prosthesis, and catheters?

Polysaccharide slime (biofilm)

12

Which organism is highly found in the nose flora? * Final 2009

Staphylococcus aureus

13

taphylococcus epidermidis is considered part of the normal flora, however, it can cause many diseases in immunocompromised hosts. What is its virulence factor? Final 2009

Slime

14

A patient is suffering from bacterial pharyngitis. Lab results showed gram positive cocci. What is the likely cause?*Final 209

Streptococcus pyogenes

15

Which of the following is a cause of meningitis & septicemia in neonates?

S. Agalactiae

16

Which bacteria is the most likely cause of severe community acquired pneumonia?
A-streptococcus pyrogens
B- streptococcus agalactia
C- streptococcus pneumonia
D- enterococcus

C-streptococcus pneumonia

17

What is the clumping factor in staphylococcus aureus involved in?

clot formation

18

What allows staphylococcus epidermidis to adhere to artificial heart valves, prosthesis, and catheters?

Polysaccharide slime

19

What causes honeymoon disease?

Staphylococcus Saprophyticus

20

Production of which substance helps the adherence of viridian streptococci to dental enamel?

Carbohydrate

21

Which of the following contributes to persistence of s. aureus on foreign bodies?
A. Lipoteichoic acid
B. Peptidoglycan
C.Extracellar polysaccharides

Extracellar polysaccharides

22

What is produced Viridans streptococci to adhere to the heart valve?
A. Acid
B. Carbohydrate
C. M protein
D. Extracellular dextran

Extracellular dextran

23

Which of the following bacteria is found permanently on the skin?( FB2 2014 )

Staphylococcus

24

What is the test for differentiating between streptococcus & staphylococcus?(FINAL 2014 )
A) Catalase test
B) coagulase test

Catalase test