Question

write 10 line on the harmful of micro organism in ourlives

Answer 1

Microbes can be harmful in many ways as

Bacteria: Causes various diseases such as typhoid, diarrhea, and cholera.

Fungi: Causes a large number of diseases in plants and in animals such as rust diseases in plants, fruit rot in apple, red rot in sugar cane and ring worm disease in human beings.

Algae: Algal boom in water (rapid growth of algae) causes poisonous effect after they die, which in turn results in the death of aquatic organisms.

Protozoa: Causes Amoebic dysentery, pyorrhoea and sleeping sickness etc.

Virus: Cause small fox, common cold, influenza, herpes, hepatitis, polio and rabies.

Microbes can cause

Microbes are also responsible for spoilage of food.

Microbes also causes water pollution eg. Algal bloom causes death of aquatic life.

Microorganisms are sometimes toxic like toxic mushrooms and if somethimes can be eaten became deadly

Microbes also causes inflammation.

Answer 2

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Uses of microorganisms:

(i) Microorganisms help in the preparation of curd, bread, cake etc.

(ii) They are used to produce alcohol at large scale.

(iii) Yeast is used to prepare vinegar.

(iv) Microorganisms are used to make wines.

(v) They act as cleaning agent and decompose the waste products into manure.

(vi) They destroy the plant and animal dead bodies by decomposing them.

(vii) They increase soil fertility by fixing nitrogen of atmosphere.

(viii) They are used in making medicines like antibiotics and vaccines.

(ix) They are used as preservatives for food items.

(x) They help in various metabolic activities in our body.

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