1
Question
State
two economically important uses of:
(a)
Heterotrophic bacteria
(b)
Archaebacteria
State two economically important uses of:
(a) Heterotrophic bacteria
(b) Archaebacteria
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Solution
(a)
Heterotrophic
bacteria
(1) They
act as decomposers and help in the formation of humus.
(2) They
help in the production of curd from milk.
(3) Many
antibiotics are obtained from some species of bacteria.
(4) Many
soil bacteria help in fixation of atmospheric nitrogen.
(b)
Archaebacteria
(1) Methane
gas is produced from the dung of ruminants by the methanogens.
(2) Methanogens
are also involved in the formation of biogas and sewage treatment.
(a) Heterotrophic bacteria
(1) They act as decomposers and help in the formation of humus.
(2) They help in the production of curd from milk.
(3) Many antibiotics are obtained from some species of bacteria.
(4) Many soil bacteria help in fixation of atmospheric nitrogen.
(b) Archaebacteria
(1) Methane gas is produced from the dung of ruminants by the methanogens.
(2) Methanogens are also involved in the formation of biogas and sewage treatment.
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