The methanogens, a unique group within Archaebacteria, are characterized by their ability to:
Perform photosynthesis using bacteriochlorophyll
Produce methane as a metabolic byproduct
Fix atmospheric nitrogen in aerobic conditions
Survive extreme high pH environments
Related Questions
Read the following statements regarding archaebacteria and select the correct option
I. Archaebacteria differs from other bacteria in having different cell wall structure
II. Their cell wall is made up of cellulose and contains high amount of unsaturated fatty acid, which is responsible for their survival in extreme conditions
III. Thermoacidophiles have dual ability to tolerate high temperature as well as high acidity
I and II are true
I and III are true
II and III are true
I, II and III are true
Thermococcus,Methanococcus and Methanobacterium exemplify
Archaebacteria that contain protein homologous to eukaryotic core histones
Archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled
Bacteria whose DNA is relaxed or positively supercoiled but, which have a cytoskeleton as well as mitochondria
Bacteria that contain a cytoskeleton and ribosomes
A peculiar odour that prevails in marshy areas and cow-sheds is on account of a gas produced by
Mycoplasma
Archaebacteria
Slime moulds
Cyanobacteria
Thermococcus,Methanococcus and Methanobacterium are
Archaebacteria having eukaryotic histone homologue
Bacteria with cytoskeleton
Archaebacteria with negatively supercoiled DNA as eukaryotes but lacking histones
Bacteria having positively coiled DNA, cytoskeleton, mitochondria
Methanogens belong to
Slime moulds
Eubacteria
Archaebacteria
Dinoflagellates
Which of the following statements accurately differentiates Archaebacteria from Eubacteria?
Archaebacteria have peptidoglycan in their cell walls, while Eubacteria do not.
Archaebacteria lack introns in their genes, while Eubacteria have introns.
Archaebacteria have branched chain lipids in their cell membranes, while Eubacteria have straight chain lipids.
Archaebacteria are sensitive to antibiotics, while Eubacteria are resistant.
Which of the following is NOT a characteristic of the prokaryotes involved in biogas production from ruminant dung?
Are prokaryotic
Belong to Archaebacteria
Essential for methane production
Require oxygen for survival
Thermococcus, Methanococcus, Methanobacterium exemplify
Bacteria whose DNA is relaxed (or) positively super coiled but which have a cytoskeleton
as well as mitochondria
Bacteria that contain a cytoskeleton and ribosomes
Archaebacteria that contains protein homologous to eukaryotic core histones
Archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is
negatively supercoiled
Read the following statements regarding methanogens and select correct options
(i) They are included in the group of archae bacteria
(ii) They are responsible for the production of biogas in gober gas plants
(iii) They live in hot sulphur springs
(iv) They are strictly anaerobic
Only statements (i) and (ii) are correct
Only statements (i), (ii), (iv) are correct
Statements (ii), (iii) and (iv) are correct
All statements are correct
Kingdom Monera includes
Bacteria
Cyanobacteria
Archaebacteria
All
