- Gives negative charge
- Major antigenic determinant
- Transport ions
- Anchoring
- External permeability barrier

Tulane University

The cell wall is composed of peptidoglycan, a mucopeptide (formed by N acetyl glucosamine & N acetyl muramic acid) linked to peptide chains. Teichoic acids are embedded into the cell wall and may be linked to lipids (Lipoteichoic acid). These Lipotechoic acids connect peptidoglycan to the cytoplasmic membrane and gives the cell wall its rigidity. 

Composition of the Cell Wall

Al-mohanna, Moshtaq & H., quine. (2016). MORPHOLOGY AND CLASSIFICATION OF BACTERIA. 

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