Fever, leukopenia, DIC, and hypotension caused by members of the Enterobacteriaceae family are most strongly associated with which of the following structures?: (A) H antigens, (B) K antigens, (C) Lipid A, (D) Polysaccharides
Answer is C. The lipopolysaccharide (LPS) of gram-negative cell walls consists of a complex lipid, lipid A, to which is attached a polysaccharide made up of a core and a terminal series of repeat units.