Question

How are Archea different from Bacteria
A. Can form Methane
B. Have different rRNA sequences
C. Do not have peptidoglycan in their cell walls
D. All of these are correct

Answer 1

Hint: Archaebacteria are known to be the oldest living organisms on earth. They belong to the dominion monera and are classified as bacteria as a result of they resemble bacteria once discovered below a magnifier. excluding this, they're utterly distinct from prokaryotes. They share slightly common characteristics with the eukaryotes. So we have to think about the structural and functional behaviour of both Archaebacteria and eubacteria.

Complete answer:
Bacteria contain peptidoglycan within the cell wall; Archea don't. The semipermeable membrane in bacteria could be a lipid bilayer; in Archea, it may be a lipid bilayer or a monolayer. The bacterium contains fatty acids on the cell membrane, whereas Archea contain phenyl.

Archea is thought of to be primitive than the monera, having properties a lot like Eukaryotes as compared to moneran. a number of the options that are completely different from monera are, they're found in extremes of temperature, most of them are chemoautotrophs or chemoheterotrophs, Methanogens are a sort of chemo heterotrophs that manufacture alkane as a metabolic by-product, they need pseudomurein or pseudo peptidogly clans in their cytomembrane.

Hence, the correct answer is option (D).

Note: Generally Archea represent a domain of one-celled organisms. These microorganisms lack cell nuclei and are thus prokaryotes. Archea were at the start classified as a microorganism, receiving the name Archaebacteria, however, this classification is obsolete. So Archaebacteria are mainly different from the cytomembrane structure. Which is called peptidoglycan which is absent in bacteria in comparison to eubacteria.