Staphylococcus – Section 1

11. The bacteria which can ferment mannitol anaerobically is

A. Staphylococcus aureus
B. S epidermidis
C. S saprophyticus
D. None of these

Correct Answer: A. Staphylococcus aureus

12. Protein A is found in the cell wall of

A. coagulase-negative staphylococci
B. Staphylococcus aureus
C. Micrococci
D. none of these

Correct Answer: B. Staphylococcus aureus

13. The most common cause of cystitis (after Escherichia coli) in healthy sexually active women is

A. Staphylococcus saprophyticus
B. Proteus mirabilis
C. Pseudomonas aeruginosa
D. Klebsiella pneumoniae

Correct Answer: A. Staphylococcus saprophyticus

14. Which of the following can be used to detect the clumping factor?

A. tube coagulase test
B. slide coagulase test
C. precipitation test
D. none of these

Correct Answer: B. slide coagulase test

15. Most strains of Staphylococcus aureus indicate

A. phosphatase production
B. a golden-yellow pigment
C. β-haemolysis on sheep blood agar
D. all of the above

Correct Answer: D. all of the above

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