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
Certain bacteria can survive extreme conditions like high salinity, high temperature, or high acidity. This ability is primarily attributed to:
Presence of a nucleus with a distinct nuclear membrane
Possession of membrane-bound organelles like mitochondria
Specialized cell wall structure and unique biochemical adaptations
Their ability to form endospores under all conditions
Which statement about meiosis is NOT true?
It reduces the chromosome number by half.
It introduces genetic variation.
It involves two rounds of division.
It produces genetically identical daughter cells.
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
Which adaptation is crucial for halophiles to survive in high salt conditions?
Ability to perform photosynthesis at high temperatures
Production of methane
Mechanisms for maintaining osmotic balance
Resistance to high acidity
Which of the following statements regarding Mycoplasma is INCORRECT?
They can pass through filters smaller than 1 micron.
They are considered the smallest living cells.
They lack a cell wall.
They possess a rigid cell wall.
State whether the given statements are true or false
I. Bacteria shows both autotrophic and heterotrophic nutrition
II. Some of the bacteria are autotrophic. They may be photosynthetic autotrophic or chemosynthetic autotrophic
III. Heterotrophic nutrition involves the obtaining of readymade organic nutrients from outside sources
I and II are true
I is true, II and III is false
I, II and III are true
I, II and III
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
Which of the following is NOT a method of genetic recombination in bacteria?
Binary fission
Transduction
Transformation
Conjugation
Which one of the following statements about mycoplasma is wrong?
Mycoplasmas lack a cell wall.
Mycoplasmas are facultative anaerobes.
Mycoplasmas have a rigid cell wall.
Mycoplasmas have a small genome.
Which of the following disease is not caused by eubacteria
Canker
Tetanus
Thyphoid
Pleuropneumonia
