Question

multiple choice question the component of lipopolysaccharide indicated by the letter a is ______. the porin protein the core polysaccharide the o antigen lipid a

Explanation:

Lipopolysaccharide (LPS) has three main components: O antigen (outermost, polysaccharide chain), core polysaccharide, and lipid A (innermost, lipid - based). The part labeled A in the diagram of LPS is the outermost polysaccharide chain, which is the O antigen. Porin protein is a different type of protein in the outer membrane, not part of LPS. The core polysaccharide is between the O antigen and lipid A, and lipid A is the innermost lipid - containing part. So the component indicated by A is the O antigen.

Answer:

the O antigen