Peptidoglycan is characteristic constituent of cell wall in

a) eubacteria
b) archaebacteria
c) bacteria and cyanobacteria
d) monera and protista
e) All of these

Ans: bacteria and cyanobacteria

  • The eubacteria are the commonly encountered bacteria in soil, water and living in or on larger organisms, and include the Gram-positive and Gram-negative bacteria, and Cyanobacteria (Photosynthetic blue-green algae)
  • Cyanobacteria contain peptidoglycan or murein in their cell wall. 
  • The archaebacteria grow in unusual environments such as salts brines, hot springs and in the ocean depths, and include the sulfur bacteria, and the methanogens. Archaebacteria lack peptidoglycan
  • For more about, refer our post Bacterial Cell wall 

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