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Difference between Eubacteria and Archaebacteria

Eubacteria
Monerans can be classified into three major groups: the eubacteria (True bacteria), cyanobacteria (blue green algae) and archaebacteria (ancient bacteria). 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.
Archaebacteria: Purple Sulphur Bacteria
The archaebacteria grow in unusual environments such as salt brines, hot springs and in the ocean depths. They are a group of most primitive prokaryotes which are believed to have evolved immediately after the evolution of the first life. They are of three types:-methanogens, Halophiles and thermoacidophilies. 


Difference Between

Eubacteria and Archaebacteria


No
Character
Eubacteria
Archaebacteria
1.
Habitat
Present every where
Mostly inhabit in extreme environmental conditions.
2
Cell wall
Peptidoglycan with muramic acid.
Variety of types, no muramic acid.
3
Membrane lipids
Ester linked, straight -chained fatty acids are present containing L-glycerol phosphate.
Ether linked branched aliphatic chains are present containing  D-glycerol phosphate.
5
DNA Dependent RNA polymerase
Simple  subunit pattern
Complex subunit pattern similar to eukaryotic enzyme
6
tRNA
Thymine present in most tRNAs N-formylmethionine (f met) carried by initiator tRNA
No thymine in TᴪC arm of tRNA methionine (met) carried by initiator tRNA
7
Intron
Introns are absent
Introns are present

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