Question

write 6 to 8 lines on the usefulness of micro organisms in our life​

Answer 1

Answer:

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.

Answer 2

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Given below are the few uses of microorganisms:

✭Lactobacillus is used to form curd from milk.

✭Rhizobium present in the roots of pulse plants fix nitrogen from the air and supply nitrogen compounds to the pulse plants.

✭Micro-organisms are also used in winemaking, baking, pickling, and other food-making processes.

✭Alcoholic fermentation by yeast is widely used in the preparation of wine and bread.

✭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.

✭Microbes also play an important role in the preparation of medicines. Antibiotics are chemicals produced by micro-organisms to kill bacteria. Penicillin is an antibiotic made from Penicillium.

✭Bacteria present in our intestine helps in proper digestion and release Vitamin B which is absorbed by the intestine.

✭Many vaccines are prepared from micro-organisms. These vaccines are given to children to protect them from the disease.

Certain microbes are also used in the biological treatment of sewage and industrial effluents.

✭Yeast is used in making idli, bhaturas, bread, pastries, and cakes.

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