题目内容

Organisms that do not require oxygen for growth but grow better in its presence are called

A. facultative anaerobes
B. microaerophiles
C. obligate aerobe
D. obligate anaerobe

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The primary toxin associated with invasive Clostridium perfringens infection is

A. neuraminidase
B. alpha toxin
C. hyaluronidase
D. coagulase

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A neurotoxin that causes flaccid paralysis is

A. tetanospasmin
B. botulinum toxin
C. α toxin
D. enterotoxin

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The most common portal of entry forC. tetani,the cause of tetanus, is the

A. Skin
B. Gastrointestinal tract
C. Respiratory tract
D. Genital tract
E. Nasal tract

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Tetanus toxin (tetanospasmin) diffuses to terminals of inhibitory cells in the spinal cord and brainstem and blocks which of the following?

A. Release of acetylcholine
B. Cleavage of SNARE proteins
C. Release of inhibitory glycine and γ-aminobutyric acid
D. Release of Protective Antigen
E. Activation of acetylcholine esterase

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Organisms that do not require oxygen for growth but grow better in its presence are called

A. facultative anaerobes B. microaerophiles C. obligate aerobe D. obligate anaerobe

The primary toxin associated with invasive Clostridium perfringens infection is

A neurotoxin that causes flaccid paralysis is

The most common portal of entry forC. tetani,the cause of tetanus, is the

Tetanus toxin (tetanospasmin) diffuses to terminals of inhibitory cells in the spinal cord and brainstem and blocks which of the following?

A. facultative anaerobes
B. microaerophiles
C. obligate aerobe
D. obligate anaerobe