Clostridium(Microbiology ) Questions and Answers

Question 1. Which of the following properties are the characteristics of tetanospasmin?
  1.    It can be toxoided
  2.    All of these
  3.    It is a neurotoxin
  4.    It is a heat-labile protein
Explanation:-
Answer: Option B. -> All of these
Question 2. Which of the following is predominantly proteolytic?
  1.    C. sporogenes
  2.    C. speticum
  3.    Both (a) and (b)
  4.    C. histolyticum
Explanation:-
Answer: Option C. -> Both (a) and (b)
Question 3. Types of exotoxin, most commonly associated with botulism in man, is/are?
  1.    Type A
  2.    Type B
  3.    Type E
  4.    All of these
Explanation:-
Answer: Option D. -> All of these
Question 4. Nagler's reaction is useful for the identification of
  1.    C difficile
  2.    C tetani
  3.    C botulinum
  4.    C perfringens
Explanation:-
Answer: Option D. -> C perfringens
Question 5. Which of the following types of Clostridium perfringens produces alpha toxin most abundantly?
  1.    Type B
  2.    Type C
  3.    Type D
  4.    Type A
Explanation:-
Answer: Option D. -> Type A
Question 6. Which of the following species of Clostridium is predominantly sacchrolytic?
  1.    C novyi
  2.    C perfringens
  3.    C septicum
  4.    All of these
Explanation:-
Answer: Option D. -> All of these
Question 7. Stormy clot reaction is useful in identification of
  1.    C botulinum
  2.    C tetani
  3.    C perfringens
  4.    C difficile
Explanation:-
Answer: Option C. -> C perfringens
Question 8. The most toxic exotoxin is
  1.    cholera toxin
  2.    botulinum toxin
  3.    diphtheria toxin
  4.    tetanus toxin
Explanation:-
Answer: Option B. -> botulinum toxin
Question 9. Food poisoning strains of Clostridium perfringens belong to
  1.    type D
  2.    type B
  3.    type C
  4.    type A
Explanation:-
Answer: Option D. -> type A
Question 10. Reddening of meat in cooked meat broth is produced by
  1.    C tetani
  2.    Clostridium perfringens
  3.    C sporogenes
  4.    C histolyticum
Explanation:-
Answer: Option B. -> Clostridium perfringens
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