超星 - Quiz of spirochete -- T.palidum

单选题

Each statement is right about spirochete EXCEPT ___.

A. It is Gram-negative bacteria.
B. It is thin, tightly coiled, helically shaped.
C. It can corkscrew and burrow through their hosts’ tissues.
D. Its axial fimbria can rotate.

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单选题

Which one does not belong to the group of spiral bacterium?

A. Vibrio cholera;
B. Helicobacter pylori
C. Psuedomonads ;
D. Treponema palidum;

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单选题

Each statement is right about T. pallidum EXCEPT ___.

A. It is visualized by silver stain method.
B. It can grow into colony in bloody agar plate.
C. It is thin, tightly coiled, helically shaped.
D. It is Gram-negative bacteria.

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单选题

The disease caused by T. pallidum is _____.

A. enteritis;
B. syphilis;
C. urethritis;
D. gonorrhea

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单选题

Which is not the virulent factors of T.pallidum ?

A. flagellum;
B. Adhesins;
C. Hyaluronidase;
D. endotoxin;

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单选题

Which phases of syphilis are highly infectious ?

A. Phase I and Phase III
B. Phase I and Phase II
C. Phase II and phase III
D. All three phases

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单选题

In which phase of syphilis, no lesion is detected?

A. Primary phase
B. Second phase
C. latent phase
D. tertiary phase.

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单选题

In Which phase does lesion of changcre occur?

A. Primary phase
B. Second phase
C. Latent phase
D. Tertiary phase

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单选题

Each statement is right about TP infection EXCEPT _____?

A. Heart failure may proceed in tertiary phase.
B. A chancre lesion is reddened ulcer filled with TP in Phase II.
C. TP can invade the bloodstream and spreadsystemically.
D. Widely spread rash lesions are filled with spirochetes and extremely contagious in second phase.

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单选题

In which phase of syphilis, no active TP is detected?

A. Primary phase;
B. Second phase
C. Latent phase
D. Tertiary phase.

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