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
Which of the following can fix atmospheric nitrogen?
Albugo
Cystopus
Saprolegnia
Anabaena
Free living, aerobic, non-photosynthetic, nitrogen fixing bacterium is
Azotobacter
E.coli
Nostoc
Salmonella
All of the following statements concerning the actinomycetous filamentous soil bacterium Frankia are correct, except that Frankia
can live free in the soil
forms nitrogen-fixing root nodules on its host
produces spores
produces antibiotics effective against other soil bacteria
Nitrogen fixing Cyanobacterium is:
Rhizobium
Nostoc
Chlorella
Eubacteria
Which of the following bacteria fixes nitrogen without any plant association?
Rhizobium
Nostoc
Anabaena
Azotobacter
The common nitrogen-fixer in paddy fields is
Rhizobium
Azospirillum
Oscillatoria
Frankia
Heterocysts present in Nostoc are specialised for
Photosynthesis
Food storge
Nitrogen fixation
Fragmentation
A free living nitrogen fixing cyanobacterium which can also form symbiotic association with the water fernAzolla is
Tolypothrix
Chlorella
Nostoc
Anabaena
Which is not related with N_2-fixation?
Anabaena
Rhizobium
Pseudomonas
Nostoc
Nitrogen fixing Cyanobacterium is:
Rhizobium
Nostoc
Chlorella
Eubacteria
