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What is the main characteristic that distinguishes archaebacteria from eubacteria?
- a)Presence of peptidoglycan in the cell wall
- b)Absence of peptidoglycan in the cell wall
- c)Ability to form spores
- d)Presence of a nucleus
Correct answer is option 'B'. Can you explain this answer?
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What is the main characteristic that distinguishes archaebacteria from...
Archaebacteria are distinguished from eubacteria by the absence of peptidoglycan in their cell walls. Archaebacteria have cell walls composed of other polymers, which helps them survive in extreme environments. Eubacteria, on the other hand, have cell walls that contain peptidoglycan. This makes Option B the correct answer.
Most Upvoted Answer
What is the main characteristic that distinguishes archaebacteria from...
Absence of peptidoglycan in the cell wall
Peptidoglycan is a structural component found in the cell walls of eubacteria but is absent in archaebacteria. This is the main characteristic that distinguishes archaebacteria from eubacteria.
Differences between Archaebacteria and Eubacteria:
- Cell Wall Composition: Archaebacteria lack peptidoglycan in their cell walls, while eubacteria have peptidoglycan.
- Membrane Lipids: Archaebacteria have unique membrane lipids called ether linkages, while eubacteria have ester linkages.
- Gene Expression: Archaebacteria have a different mechanism of gene expression compared to eubacteria.
- Environment: Archaebacteria are known to inhabit extreme environments like hot springs, salt flats, and deep-sea vents, while eubacteria are found in various habitats.
Significance of Absence of Peptidoglycan in Archaebacteria:
The absence of peptidoglycan in the cell wall of archaebacteria allows them to survive in harsh environments that would typically destroy eubacteria. This unique feature contributes to their ability to thrive in extreme conditions and makes them of significant interest to scientists studying extremophiles.
In conclusion, the absence of peptidoglycan in the cell wall is the key characteristic that distinguishes archaebacteria from eubacteria. This fundamental difference plays a crucial role in the biology and ecology of these two groups of prokaryotes.
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What is the main characteristic that distinguishes archaebacteria from eubacteria?a)Presence of peptidoglycan in the cell wallb)Absence of peptidoglycan in the cell wallc)Ability to form sporesd)Presence of a nucleusCorrect answer is option 'B'. Can you explain this answer?
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