Methanogens, a unique group of archaebacteria, are found in which of the following environments?
Hot springs
Gut of ruminant animals
Salt lakes
Acidic soils
Related Questions
Choose the correct sequence of stages of growth curve for bacteria
Lag, log, stationary, decline phase
Lag, log, stationary phase
Stationary, lag, log, decline phase
Decline, lag, log phase
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
Which of the following organisms are characterized by their ability to produce methane in anaerobic environments?
Halophiles
Thermoacidophiles
Methanogens
Cyanobacteria
Cyanobacteria are:
Producers
Decomposers
Consumers
All the above
Methanogens belong to
Slime moulds
Eubacteria
Archaebacteria
Dinoflagellates
Identify the organism that is characterized by the absence of a defined cell wall, the ability to cause diseases in both plants and animals, and the capacity to thrive in anaerobic conditions.
Mycoplasma
Cyanobacteria
Actinomycetes
Rickettsia
A cell with 2n chromosomes undergoes meiosis. How many chromosomes will each of the resulting daughter cells have?
2n
n
4n
3n
The smallest free-living organism is
Virus
Mycoplasma
Diatom
Cyanobacterium
Nostoc and Anabaena belongs to
Eubacteria
Archaebacteria
Cyanobacteria
Coccibacteria
Which one of the following combinations of microbes is responsible for the formation and flavor of yoghurt?
Streptococcus thermophilus and Lactobacillus bulgaricus
Lactobacillus acidophilus and Bifidobacterium bifidum
Penicillium roqueforti and Saccharomyces cerevisiae
Escherichia coli and Staphylococcus aureus
