1. Which of the following types of Clostridium perfringens produces alpha toxin most abundantly?

A. Type A
B. Type B
C. Type C
D. Type D

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2. Which of the following is predominantly proteolytic?

A. C. sporogenes
B. C. histolyticum
C. Both (a) and (b)
D. C. speticum

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3. Which of the following properties are the characteristics of tetanospasmin?

A. It is a heat-labile protein
B. It is a neurotoxin
C. It can be toxoided
D. All of these

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4. Types of exotoxin, most commonly associated with botulism in man, is/are?

A. Type A
B. Type B
C. Type E
D. All of these

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5. Nagler’s reaction is useful for the identification of

A. C tetani
B. C perfringens
C. C botulinum
D. C difficile

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