Question

State two economically important uses of:
(a) heterotrophic bacteria
(b) archaebacteria​

Answer 1

Heterotrophic bacteria: They include saprotrophic, symbiotic and parasitic bacteria. They act as natural scavengers as they dispose off the dead bodies, organic wastes, release raw materials for reutilisation. They also help in sewage disposal, manure production etc. Symbiotic bacteria help in nitrogen fixation. Some bacteria arq employed in the production of a number of industrial products like lactic

acid, curd, cheese, butter, vinegar etc. Some bacteria are used in preparation of serum, vaccines, vitamins, enzymes, antibiotics etc. e.g., Pseudomonas, Xanthomonas, etc.

(b) Archaebacteria : Archaebacteria are employed in the production of gobar gas from dung and sewage and in ruminants, they cause fermentation of cellulose.

Answer 2

Important functions of bacteria

Explanation:

• Heterotrophic microscopic organisms are microorganisms which make due by determining their vitality utilizing natural issue from different sources rather blending their own natural issue. The Heterotrophic microorganisms have a few monetary applications; Lactobacillus and Streptococcus are generally utilized for the generation of milk items like curd and cheddar. Streptomyces is a class of Gram-positive microscopic organisms with the capacity to create bioactive optional metabolites, for example, antifungals, antivirals, antitumoral, enemies of hypertensives, and essentially anti-infection agents and immunosuppressives.
• A wide range of sorts of heterotrophic microscopic organisms are utilized for sewage treatment. Some heterotrophic microorganisms like Alcanivorax or Methylocella Silvestris have a significant applications in bio-remediation (cleaning the oil slicks).
• Archaebacteria are a gathering of prokaryotes which live under extremely unforgiving and unfriendly conditions. Since the chemicals from these living beings can endure cruel conditions they have numerous mechanical applications in biotechnology; Many of the thermostable catalysts utilized in the control of DNA are gotten from Archaebacteria, Methanogens of the Archaebacteria are primarily engaged with the biogas generation.