Which of the following is NOT a virulence factor of Streptococcus pneumoniae? (1 mark)CapsuleAdhesinsExotoxinFlagella
Question
Which of the following is NOT a virulence factor of Streptococcus pneumoniae? (1 mark)CapsuleAdhesinsExotoxinFlagella
Solution 1
The answer is Flagella. Streptococcus pneumoniae does not have flagella. The other three options - Capsule, Adhesins, and Exotoxin - are all virulence factors of Streptococcus pneumoniae. The capsule helps the bacteria evade the host's immune system, adhesins help the bacteria adhere to host cells, and exotoxins can damage host tissues.
Solution 2
The virulence factors of Streptococcus pneumoniae include the capsule, adhesins, and exotoxin. However, Streptococcus pneumoniae does not have flagella. Therefore, flagella is NOT a virulence factor of Streptococcus pneumoniae.
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