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Home Microbiology Actinomycetes and Non Sporing Anaerobes Comments

  • Question
  • Colonies resembling molar teeth are produced by


  • Options
  • A. Nocardia brasiliensis
  • B. N. asteroids
  • C. Actinomyces israelii
  • D. Actinomadura madurae

  • Correct Answer
  • Actinomyces israelii 


  • Actinomycetes and Non Sporing Anaerobes problems


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    • 1. The current genus name of a saccharolytic group of Bacteroides is

    • Options
    • A. Porphyromonas
    • B. Bacteroides
    • C. Prevotella
    • D. None of these
    • Discuss
    • 2. Which of the following genera is included in the family Bacteroi-daceae?

    • Options
    • A. Bacteroides
    • B. Fusobacterium
    • C. Leptotrichia
    • D. All of these
    • Discuss
    • 3. Which of the following bacteria is acid-fast?

    • Options
    • A. Actinomyces
    • B. Nocardia
    • C. Streptomyces
    • D. Corynebacterium
    • Discuss
    • 4. Which of the following bacteria is moderately saccharolytic?

    • Options
    • A. Bacteriodes fragilis
    • B. B gingivalis
    • C. B melaninogenicus
    • D. B levii
    • Discuss
    • 5. The bacteria which is predominant flora of the human gut is

    • Options
    • A. Escherichia coli
    • B. Clostridium perfringens
    • C. Bacteroides
    • D. Actinomyces
    • Discuss
    • 6. Which of the following bacterial colonies fluoresce brick-red in UV light?

    • Options
    • A. B gingivalis
    • B. B melaninogenicus
    • C. Bacteroides fragilis
    • D. B levii
    • Discuss
    • 7. Lactobacilli grow best under

    • Options
    • A. strict anaerobic conditions
    • B. microaerophilic conditions in presence of 5% CO2 and PH6
    • C. microaerophilic conditions in presence of 3% CO2 and PH5
    • D. microaerophilic conditions in presence of 2% CO2 and PH4
    • Discuss
    • 8. The commonest species of Bacteroides in fragilis group, which causes human infection, is

    • Options
    • A. B vulgatus
    • B. B fragilis
    • C. B ovatus
    • D. B merdae
    • Discuss
    • 9. Which of the following bacteria is gram-negative cocci?

    • Options
    • A. Veillonella
    • B. Peptococcus
    • C. Peptostreptococcus
    • D. Sporosarcina
    • Discuss
    • 10. The most pathogenic Brucella spp for man is

    • Options
    • A. B melitensis
    • B. B abortus
    • C. B suis
    • D. B canis
    • Discuss


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