Question

write 5-6lines on the usefulness of mivrooraganisms in our life​

Answer 1

ANSWER

1. Penicillium, a fungi is used to produce antibiotics like penicillin.

2. Rhizobium helps in nitrogen fixation in soil and thus, increases the fertility of the soil.

3. Yeast is widely used in a bakery for making fluffy bread and cake.  

4. Blue-green algae carry out nitrogen fixation.  

5. Lactobacillus is used in dairy industries for the setting of curd and cheese making.  

6. Many microbes carry out the decomposition of dead remains of plants and animals.  

7. Spirulina, yeast are used as single-cell proteins (supplementary food).

8. Yeast is used on a commercial basis for the production of alcohol via fermentation.  

9. Processing and aging of cheese are carried out by microorganisms.

10. Some microorganisms are used as a probiotic (live bacteria and yeasts that are good for the digestive system and maintain the good health of the host). They are called 'good' or 'useful' bacteria.

Answer 2

Explanation:

5 - 6 lines on usefulness of microorganisms-

1. Alcoholic fermentation by yeast is widely used in the preparation of wine and bread.
2. They are used in winemaking, baking, pickling and other food-making processes.
3. They are used to increase soil fertility by fixing atmospheric nitrogen.
4. Microbes are also useful in preparing many medicines and antibiotics.
5. Certain microbes are also used in the biological treatment of sewage and industrial effluents.
6. Some microorganisms are taken as probiotics, that are believed to provide health benefits when consumed.