A) Teichoic acid
B) Pseudomurein
C) Lipopolysaccharide
D) Mycolic acid
Correct Answer: A
Solution :
Gram negative bacteria are a class of bacteria that do not retain crystal violet stain or Gram stain. They contain a thin peptidoglycan layer and outer membrane containing Lipopolysa ccharides (LPS). Teichoic acids or lipoteichoic acids are absent. Pseudomurein is present in Archaebacteria where it forms S-layer. Mycolic acid is a component of cell wall of Actino mycetes and Gram positive bacteria.
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