Which of the following is a feature of the cell envelope of Gram-negative bacteria?
FeaturesGram-PositiveGram-NegativePeptidoglycanThick layerThin layerTeichoic acidsPresentAbsentOuter membraneAbsentPresentLipopolysaccharide(endotoxin)AbsentPresentPorin proteinsAbsentPresent; allow passage ofmolecules through the outer membranePeriplasmAbsentPresentRef: Jawetz Medical Microbiology; 27th edition; Page no: 23
Teichoic acid present
Lipopolysaccharide Present
Porin proteins are absent
Periplasm absent
general microbiology