Assertion : Archaebacteria are able to survive in harsh habitats.\ Reason : Presence of peptidoglyc

Question

Assertion : Archaebacteria are able to survive in harsh habitats.\ Reason : Presence of peptidoglycan in cell wall help archaebacteria to survive in extreme conditions.\

Professor PC Thomas Classes · Answer

(c) : Archaebacteria are special since they live in some of the most harsh habitats such as extreme salty areas (halophiles), hot springs (thermoacidophiles) and marshy areas (methanogens). Archaebacteria differ from other bacteria in having a different cell wall structure and this feature is responsible for their survival in extreme conditions. Archaebacteria are characterised by absence of peptidoglycan in their cell wall. Instead cell wall contains protein and non cellulosic polysaccharide.