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Cell Walls

Microbiology -Cell Walls

CharacteristicGram-Positive BacteriaGram-Negative BacteriaAcid-Fast Bacteria
Peptidoglycan Thick layer thin layer relatively small amount
Teichoic acid often present absent absent
Lipids very little present lipopolysaccaharide mycolic acid & other waxes & glycolipids
Outer membrane absent present absent
Periplasmic space absent present absent
Cell shape always rigid rigid or flexible rigid or flexible
Results of enzyme digestion protoplast spheroplast difficult to digest
sensivity to dyes & antiboiotics most sensitive moderately sensitive least sensitive
Created by: JYarger