Question

Why cell wall of gram positive bacteria is more permeable than gram negative bacteria as porins absent in gram + ve bacteria?

Answer 1

Answer:

For gram positive bacteria the cell wall is thicker, one layered wall entirely made up of peptidoglycan, smooth, not soluble in organic solvents. Teichoic acids present in wall.

but for gram _ve bacteria posses thinner wall two to three layered ( 4 layerd in BGA) , wavy , innermost layer is made up of peptidoglycan, outer layer are made up of lipopolysaccharide and proteins which are dissolved by the organic solvents.

porin proteins are present in the wall but teichoic acid are absent.

Explanation:

since Gram positive bacteria is having single layered wall so the movement of particles is more easier than gram negative bacteria having additional wall layers apart from that of peptidoglycan.