The most common bacterial characteristic that allows for evasion of phagocytosis by the host is called
A) exotoxin production.
B) extracellular enzyme production.
C) pili.
D) polysaccharide capsule.

Question

Quizplus · Accepted Answer

The polysaccharide capsule is a thick, gel-like layer that surrounds certain bacterial cells, serving as a protective barrier against the host immune system, including phagocytes. It prevents the opsonization of bacteria and also limits complement activation, limiting bacterial recognition and phagocytosis. Exotoxin production and extracellular enzyme production can damage host cells but do not specifically provide evasion from phagocytosis. Pili allow for attachment to host cells but do not necessarily prevent phagocytosis.

The Most Common Bacterial Characteristic That Allows for Evasion of Phagocytosis