Question

write 10 lines on usefulness of microorganism in our lives

Answer 1

Lactobacillus is used to form curd from milk.
2. Rhizobium present in the roots of pulse plants fix nitrogen from air and supply nitrogen compounds to the pulse plants.
3. Micro-organisms are also used in winemaking, baking, pickling, and other food making processes.
4. Alcoholic fermentation by yeast is widely used in the preparation of wine and bread.
5. Microbes are used to reduce pollution. For example, decomposers such as bacteria and fungi break down dead bodies and excreta to form inorganic compounds, which can be absorbed by plants.
6. Microbes also play an important role in the preparation of medicines. Antibiotics are chemicals produced by micro-organisms to kill bacteria. Penicilin is an antibotic made from Penicilium.
7. Bacteria present in our intestine helps in proper digestion and release Vitmain B which is absorbed by intestine.
8. Many vaccines are prepared from micro-organisms. These vaccines are given to children to protect them from disease.
9. Certain microbes are also used in the biological treatment of sewage and industrial effluents.
10. Yeast is used in making idlis, bhaturas, bread, pastries and cakes.

Answer 2

Microorganisms are very useful to us. They help us in following ways: (i)   Microorganisms help us in food sector. They are used for curdling of milk, preparation of bread, cake, etc. (ii)   Microorganisms are used to produce alcohol at large scale. (iii) They are also used to produce wine. (iv) Yeast is used in bakeries. (v)   They are also used as preservatives for food items.(vi) They are used to make different medicines, especially the antibiotics. (vii) Microorganisms are used to prepare vaccines for various diseases. (viii) They are useful for agriculture sector, as they enhance the fertility of soil by fixing nitrogen. (ix) They work as natural cleaners, as they decompose the dead bodies of plants and animals. (x)   Microorganisms prepare manures by decomposing dead bodies of plants and animals.