Bacteria Morphology - Medical Science

Q1:

Which of the following is exposed on the outer surface of a gram-negative bacterium?

A O-antigen of lipopolysaccharide (LPS)

B Polysaccharide portion of lipoteichoic acid (LTA)

C Braun lipoprotein

D Electron transport system components

ANS:A - O-antigen of lipopolysaccharide (LPS)

No answer description is available.