Question

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Answer 1

ANSWER:-

Useful Microorganism:-

1.)Lactobacillus bacteria help make curd from milk.

2.)Bacteria act upon tough meat to make it tender and soft. It is called as tenderisation of meat.

3.)Yeast cells are used in baking industries to make dough.

4.)Yeast is also used in making of idly and dosa.

5.)Yeast is also used for commercial purposes like production of alcohol,acetic acid,beer and wine.

6.)Bacteria is helpful in generating of biogas.

7.)Rhizobium bacteria is helpful convert atmospheric nitrogen into nitrates which is helpful for the plant's growth.

8.)Agar-agar(jelly like substance) is used to prepare jellies and pudfings.

9.) Microorganisms are also used in production of antibiotics.(Eg:-strptomycin,tetracycline,aureomycin and chloromycetin).

10.)It is also used in production of vaccines.

Harmful Microorganisms:-

1.) Microorganisms causes diseases in human beings,plants and animals.(Eg:-cholera,chicken pox and tuberculosis).

2.) Microorganisms cause food poisoning.(Eg:- salmonella, staphylococcus and clostridium)

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