Discussion
Which component of the gram-negative cell wall is responsible for endotoxic activity ?
Answer: B
Correct answer: Lipid A of the lipopolysaccharide
Lipid A anchors the lipopolysaccharide in the outer membrane and is the portion that triggers fever, hypotension and shock when released. The O-antigen determines serological type, and lipoteichoic acid belongs to gram-positive walls.
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