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MCQs

Total Questions : 348 | Page 29 of 35 pages
Question 281. Which of the following Staphylococcal haemolysins does not cause lysis of human RBCs?
  1.    β haemolysin
  2.    γ haemolysin
  3.    α haemolysin
  4.    δ haemolysin
 Discuss Question
Answer: Option C. -> α haemolysin
Answer: (c).α haemolysin
Question 282. The toxin of Staphylococcus aureus that may result into scalded skin syndrome is
  1.    Enterotoxin
  2.    Leucocidin
  3.    Epidermolytic toxin
  4.    Haemolysin
 Discuss Question
Answer: Option C. -> Epidermolytic toxin
Answer: (c).Epidermolytic toxin
Question 283. The bacteria which can ferment mannitol anaerobically is
  1.    Staphylococcus aureus
  2.    S epidermidis
  3.    S saprophyticus
  4.    None of these
 Discuss Question
Answer: Option A. -> Staphylococcus aureus
Answer: (a).Staphylococcus aureus
Question 284. Protein A is found in cell wall of
  1.    coagulase-negative staphylococci
  2.    Staphylococcus aureus
  3.    Micrococci
  4.    none of these
 Discuss Question
Answer: Option B. -> Staphylococcus aureus
Answer: (b).Staphylococcus aureus
Question 285. The most common cause of cystitis (after Escherichia coli) in healthy sexually active women is
  1.    Staphylococcus saprophyticus
  2.    Proteus mirabilis
  3.    Pseudomonas aeruginosa
  4.    Klebsiella pneumoniae
 Discuss Question
Answer: Option A. -> Staphylococcus saprophyticus
Answer: (a).Staphylococcus saprophyticus
Question 286. Which of the following bacteria is susceptible to thiophen-2-carboxylic acid hydrazide?
  1.    M bovis
  2.    Mycobacterium tuberculosis
  3.    M chelonei
  4.    M fortuitum
 Discuss Question
Answer: Option A. -> M bovis
Answer: (a).M bovis
Question 287. Culture of tubercle bacilli may be positive if number of bacteria in the specimen is
  1.    as few as 1-4 per ml
  2.    as few as 5-9 per ml
  3.    as few as 10-100 per ml
  4.    as few as 125-200 per ml
 Discuss Question
Answer: Option C. -> as few as 10-100 per ml
Answer: (c).as few as 10-100 per ml
Question 288. Example of a Saprophytic bacteria is
  1.    M xenopi
  2.    Msmegmatis
  3.    Mycobacterium chelonei
  4.    M marinum
 Discuss Question
Answer: Option B. -> Msmegmatis
Answer: (b).Msmegmatis
Question 289. The causative agent of Buruli ulcer is
  1.    M chelonei
  2.    M marinum
  3.    M fortuitum
  4.    M ulcerarts
 Discuss Question
Answer: Option D. -> M ulcerarts
Answer: (d).M ulcerarts
Question 290. Eugonic growth on Lowenstein-Jensen medium is produced by
  1.    M bovis
  2.    Mycobacterium tuberculosis
  3.    Both (a) and (b)
  4.    None of the above
 Discuss Question
Answer: Option B. -> Mycobacterium tuberculosis
Answer: (b).Mycobacterium tuberculosis

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