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MCQs

Total Questions : 29 | Page 2 of 3 pages
Question 11. Which of the following bacteria is moderately saccharolytic?
  1.    Bacteriodes fragilis
  2.    B levii
  3.    B melaninogenicus
  4.    B gingivalis
 Discuss Question
Answer: Option C. -> B melaninogenicus
Question 12. The commonest bacterial cause of cervicofacial actinomycosis is
  1.    A. viscosus
  2.    A. meyeri
  3.    A. naeslundii
  4.    A. israelii
 Discuss Question
Answer: Option D. -> A. israelii
Question 13.  Lactobacilli grow best under
  1.    strict anaerobic conditions
  2.    microaerophilic conditions in presence of 5% CO2 and PH6
  3.    microaerophilic conditions in presence of 3% CO2 and PH5
  4.    microaerophilic conditions in presence of 2% CO2 and PH4
 Discuss Question
Answer: Option B. -> microaerophilic conditions in presence of 5% CO2 and PH6
Question 14.  
Which of the following genera is included in the family Bacteroi-daceae?
  1.    Bacteroides
  2.    Fusobacterium
  3.    Leptotrichia
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 15.  The bacteria which is predominant flora of the human gut is
  1.    Escherichia coli
  2.    Clostridium perfringens
  3.    Bacteroides
  4.    Actinomyces
 Discuss Question
Answer: Option B. -> Clostridium perfringens
Question 16.  Which of the following bacterial colonies fluoresce brick-red in UV light?
  1.    B gingivalis
  2.    B melaninogenicus
  3.    Bacteroides fragilis
  4.    B levii
 Discuss Question
Answer: Option B. -> B melaninogenicus
Question 17.  The current genus name of a saccharolytic group of Bacteroides is
  1.    Porphyromonas
  2.    Bacteroides
  3.    Prevotella
  4.    None of these
 Discuss Question
Answer: Option A. -> Porphyromonas
Question 18.  Which of the following bacteria is acid-fast?
  1.    Actinomyces
  2.    Nocardia
  3.    Streptomyces
  4.    Corynebacterium
 Discuss Question
Answer: Option B. -> Nocardia
Question 19.  Colonies resembling molar teeth are produced by
  1.    Nocardia brasiliensis
  2.    N. asteroids
  3.    Actinomyces israelii
  4.    Actinomadura madurae
 Discuss Question
Answer: Option C. -> Actinomyces israelii
Question 20.  Lactobacilli constitute the normal flora of
  1.    prepubertal vagina
  2.    adult vagina
  3.    post-menopausal vagina
  4.    none of these
 Discuss Question
Answer: Option B. -> adult vagina

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