Bacteriology — MCQs

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1. The causative agent of tuberculosis is:





2. Gram-positive cocci arranged in clusters are characteristic of:





3. Which bacterium causes syphilis?





4. The causative agent of anthrax is:





5. Which bacterium is associated with peptic ulcer disease?





6. The causative agent of diphtheria is:





7. The toxin responsible for tetanus is:





8. Which bacterium is acid-fast?





9. Who discovered penicillin?





10. Who developed pure culture techniques in bacteriology?





11. Which staining method is used to identify Mycobacterium tuberculosis?





12. Which bacterium produces botulinum toxin?





13. Which organism causes whooping cough?





14. Which bacterium is a common cause of neonatal meningitis?





15. Which bacteria are termed “facultative anaerobes”?





16. Which bacterium causes cholera?





17. Which bacterium causes gas gangrene?





18. The causative agent of plague is:





19. Which bacterium causes typhoid fever?





20. Which bacterium lacks a cell wall?





21. Which bacterium is called “flesh-eating bacteria”?





22. Which bacteria are diplococci?





23. Which bacterium is used in the production of insulin by recombinant DNA technology?





24. The causative agent of leprosy is:





25. The Gram stain was developed by:





26. Which bacterium causes gonorrhea?





27. Which bacterium is a major cause of urinary tract infections?





28. Which bacteria form spores?





29. Which bacterium is oxidase positive and causes pneumonia in alcoholics?





30. Which bacterium causes Legionnaires’ disease?





31. Which bacterium is responsible for scarlet fever?





32. Which bacterium causes food poisoning with “rice water stools”?





33. Which bacterium causes bacterial meningitis in young adults?





34. Which bacterium is responsible for Q fever?





35. Which bacteria cause nosocomial infections and are resistant to multiple drugs?





36. Which bacterium causes relapsing fever?





37. Which bacterium is called “rice-water stool organism”?





38. Which bacterium causes toxic shock syndrome?





39. Which bacterium causes Pontiac fever?





40. Which bacterium causes pseudomembranous colitis?





41. Which bacterium produces a “safety pin appearance” on microscopy?





42. Which bacterium is associated with Lyme disease?





43. Which bacterium produces a green pigment (pyocyanin) in culture?





44. Which bacterium causes Rocky Mountain spotted fever?





45. Which bacterium is responsible for “walking pneumonia”?





46. Which bacterium causes chancroid?





47. Which bacterium is commonly used in yogurt production?





48. Which bacterium causes tetanus?





49. Which bacterium produces “fried egg colonies” on culture?





50. Which bacterium causes cat scratch disease?





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