Question

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

Answer 1

Answer:

$\huge{Question}$

State two economically important uses of:

(a) heterotrophic bacteria

(b) archaebacteria

$\huge{Answer}$

(a) heterotrophic bacteria:

➡Many bacteria like Lactobacillus helps in the production of curd from milk.

➡They act as decomposers and help in the formation of humus e.g. Pseudomonas.

➡Many antibiotics are obtained from some species of bacteria like streptomyces, Bacillus etc.

➡ Many soil bacteria help in fixation of atmospheric nitrogen like Rhizobium (Symbiotic), Azotobacter (Free living).

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(b) archaebacteria:

➡Methane gas is produced from the dung of ruminants by the methanogens.

➡Methanogens are also involved in the formation of biogas and sewage treatment.