Question

How is archaebacteria different from eubacteria.

Answer 1

Archacbacteria are characterized by possessing cell walls without peptidoglycan, a substance found in the walls of eubacteria. The lipids in their plasma membrane are branched, differing not only from those of other bacteria. This unusual lipid makup is probably related to the extreme environments to which they have adapted. The phototrophic forms use the pigment bacteriorhodopsin instead of bacteriochlorophyll used by eubacteria.