Which of the following is the identification feature to differentiate archaebacteria from eubacteria?
Archaebacteria are characterised by absence of peptidoglycan in their wall. Instead they contain protein and noncellulosic polysaccharides. Cell wall has pseudomurein in some methanogens.
What basis is used to classify archaebacteria and eubacteria?
Organisms can be classified into one of three domains based on differences in the sequences of nucleotides in the cell’s ribosomal RNAs (rRNA), the cell’s membrane lipid structure, and its sensitivity to antibiotics. The three domains are the Archaea, the Bacteria, and the Eukarya.
How can eubacteria be identified?
The Eubacteria are all easily stained, rod-shaped or spherical bacteria. They are generally unicellular, but a small number of multicellular forms do occur. They can be motile or non-motile and the motile forms are frequently characterized by the presence of numerous flagellae.
Which of the following is difference between eubacteria and archaebacteria?
Main Difference – Archaebacteria vs Eubacteria The main difference between archaebacteria and eubacteria is that archaebacteria are usually found in extreme environmental conditions whereas eubacteria are found everywhere on earth.
What is the difference between the cell membrane of archaebacteria and eubacteria?
The key difference between archaebacteria cell wall and eubacteria cell wall is the lack of muramic acid and D-amino acids in the cell wall of archaebacteria. Also, there are some other structural and chemical composition differences among the cell wall of these two groups.
What are two characteristics of archaebacteria?
The common characteristics of Archaebacteria known to date are these: (1) the presence of characteristic tRNAs and ribosomal RNAs; (2) the absence of peptidoglycan cell walls, with in many cases, replacement by a largely proteinaceous coat; (3) the occurrence of ether linked lipids built from phytanyl chains and (4) in …
Why are archaebacteria and eubacteria different?
(a) Archaebacteria different form eubacteria in that eubacteria have cell membrane composed mainly of glycerol-ester lipids, while archaebacteria have membrane made up of glycerol-ether lipid. This stability helps archaebacteria to survive at high temperture and in very acidic or alkaline environment.
How are archaebacteria and eubacteria different?
(a) Archaebacteria different form eubacteria in that eubacteria have cell membrane composed mainly of glycerol-ester lipids, while archaebacteria have membrane made up of glycerol-ether lipid. Ether lipids are chemically more resistant then ester lipids.
Is archaebacteria eukaryotic or prokaryotic?
The archaebacteria are a group of prokaryotes which seem as distinct from the true bacteria (eubacteria) as they are from eukaryotes.
What are archaebacteria and eubacteria?
Archaebacteria and eubacteria are two domains of the kingdom: Monera, which contains the least organized unicellular prokaryotic microorganisms on earth.
Which of the following is an example of eubacteria?
Eubacteria: Mycobacteria, Bacillus, Sporohalobacter, Clostridium and Anaerobacter are the examples of eubacteria. Archaebacteria, eubacteria and cyanobacteria are the three domains of kingdom monera.
What is eubacteria made up of?
Eubacteria, also known as “true bacteria” are the unicellular prokaryotic microorganisms that are found in many different areas around the world. They lack a membrane-bound nucleus, and their cell wall is made up of peptidoglycans in a cross-linked chain pattern.
What is the difference between antibiotics and eubacteria?
Antibiotics have no effect on archaebacteria, but that’s not a bad thing in terms of our health considering that archaebacteria does not have any effect on humans. Eubacteria, on the other hand, can either help or harm humans. Some eubacteria can be considered “pathogens,” which are bacteria that can cause disease.