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Microbiology

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Gram Negative Cocci

Question
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The source of Neisseria meningitidis is the nasopharynx of human carriers who exhibit no symptoms. The ability of this bacterium to colonize the respiratory mucosa is associated with its ability to synthesize which of the following?



A Coagulase
B Collagenase

C Hyaluronidase
D Pili

Ans. D Pili

a. Both Neisseria gonorrhoeae and N. meningitidis adhere to the mucous membrane tissues by means of pili (short protein appendages from the membrane through the cell wall).

b. Coagulase and lipase are products of Streptococci, whereas collagenase and hyaluronidase are enzyme products of Streptococci.

Gram Negative Cocci Flashcard List

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