NURSING ANM AND GNM

Detailed explanation-1: -Those stained purple are Gram-positive bacteria with the pH values ranging from 1.75 to 4.15, while those stained pink are Gram-negative bacteria with the pH values ranging from 2.07 to 3.65 [5–7]. Therefore, bacteria can be classified as Gram-positive or Gram-negative according to their colors.

Detailed explanation-2: -In contrast, the peptidoglycan layer in Gram-negative bacteria is thin (about 5 to 10 nm thick); in E. coli, the peptidoglycan is probably only a monolayer thick. Outside the peptidoglycan layer in the Gram-negative envelope is an outer membrane structure (about 7.5 to 10 nm thick).