Question

Two economic uses of heterotropic bacteria

Answer 1

Answer:

Explanation:

(a) Heterotrophic bacteria

(1) Many bacteria like Lactobacillus helps in the production of curd from milk.

(2) They act as decomposers and help in the formation of humus e.g. Pseudomonas.

(3) Many antibiotics are obtained from some species of bacteria like streptomyces, Bacillus etc.

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

Answer 2

Heterotropic bacteria:-These are the type of bacteria that cannot prepare their own food, instead only obtains their food from the source of dead organic matter or living organisms.

Importance of heterotrophic bacteria:-

• In the production of milk i.e. lactobacillus.
• Also in cleaning of oil spills.