Biological Classification And System Of Classification / जैविक वर्गीकरण और वर्गीकरण की प्रणाली
11th Class
Biology
Biological Classification And System Of Classification / जैविक वर्गीकरण और वर्गीकरण की प्रणाली
question_answer2)
State two economically important uses of
(a) Heterotrophic bacteria
(b) Archaebacteria
Answer:
(a) Heterotrophic bacteria
Maintain soil fertility by nitrogen fixation, ammonification and nitrification, e.g., Rhizobium bacteria (in the root nodules of legumes).
The milk products such as bufter, cheese, curd, etc., are obtained by the action of bacteria. The milk contains bacterial forms like Streptococcus lacti, Escherichia coli, Lactobacillus lactis and Clostridium sp., etc.
(b) Archaebacteria
Metanogens are responsible for the production of methane (biogas) from the dung of these animals.