Answered

A bacterium that forms biofilms gains virulence by

A. attaching to the host.
B. forming toxins.
C. inhibiting lysosomes.
D. inhibiting macrophages.



Answer :

GinnyAnswer

Final answer:

Biofilms formed by bacteria enhance virulence by attaching to host tissues, providing antibiotic resistance, and inhibiting immune responses.


Explanation:

Biofilms are complex colonies of bacteria that exchange chemical signals to coordinate the release of toxins that attack the host.

By forming a glycocalyx matrix, bacteria in biofilms can adhere to host tissues, which enhances their virulence.

Biofilms provide a level of antibiotic resistance not found in isolated cells, inhibit phagocytosis, prevent neutrophil invasion, and sequester host antibodies.


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