Question

The characteristic of Gram - negative bacteria is

• A. Presence of porins
• B. >10% lipids in the cell wall
• C. Endotoxins
• D. All of the above

Answer 1

The correct option is D All of the above

Gram - negative bacteria display the following characteristics: outer membrane containing lipopolysaccharide (which consists of lipid A, core polysaccharide, and O antigen) in its outer leaflet and phospholipids in the inner leaflet; porins exist in the outer membrane, which act like pores for particular molecules; lipoproteins are attached to the polysaccharide membrane.