Question

write some ways in which microorganisms are useful and harmful for us

Answer 1

micro organisms helps in doing daily work like fermentation in curd in cakes

micro organisms are harmful in injecting varies diseases in plants as well as animals ex. malaria which is carried by mosquito bit is caused by plasmodium species and etc



I HOPE THIS HELPS YOU

Answer 2

Helpful

1) Microorganisms in food

Microorganisms are used in the production of fermented food and beverages. E.g. Yeast, Penicillium, Lactobacillus.

2) Microorganisms in Industry

Industrially important acids, enzymes, pigments are produced with the help of microorganisms. E.g. Aspergillus niger, Bacillus subtilis.

Harmful

1.

Bacteria: In industries, they are needed to make curd, cheese, vinegar, lactic acid, alcohol and even in ripening of tea leaves, etc.
2.Fungi: Some useful fungi are yeast, used to make dough in bakery and alcohol etc. Some fungi are useful for preparing antibiotics. Some mushrooms which are useful in making vitamins and organic acids.