Question

Write about micro organism uses and harmful effects

Answer 1

Answer:

The useful effects of microorganisms are:-

1. Microorganisms are used for the production of many food items .
2. Microorganisms are used to produce medicines.
3. Some microorganisms help to keep the environment clean.
4. Some microorganisms are used in research.
5. They are also used in manufacturing.

Harmful effects of microorganisms:-

1. Some microorganisms can cause disease to human beings.
2. Some microorganisms can cause infections in plants.

Answer 2

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Uses of micro organisms are :

• i. It helps in making curd (lactobacillus).

• ii. It helps in making bread (yeast).

• iii. It helps in the preparation of wine, alcohol etc (yeast).

• iv. It helps us in preparing organic acid (fungi)

• v. It helps in making the soil fertile by decomposing dead and decayed organisms.

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Harmful effects of microorganism are :

• i. It causes various diseases like typhoid, diarrhoea etc (bacteria).

• ii. It causes amoebic dysentery, sleeping sickness etc (Protozoa).

• iii. It causes communicable diseases like common cold, small pox, chicken pox etc (virus).

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Definition

Micro organisms are the organisms which we cannot see through our naked eyes. They are very small and hence, it can only be seen through a microscope

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Types of micro organisms

There are five types of micro organisms

• Bacteria

• Fungi

• Protozoa

• Algae

• Virus