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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6. The most toxic exotoxin is
A.tetanus toxin
B.diphtheria toxin
C.botulinum toxin
D.cholera toxin

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7. Which of the following species of Clostridium is predominantly sacchrolytic?
A.C septicum
B.C perfringens
C.C novyi
D.All of these

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