Question

Write a short note on microorganisms.

Answer 1

Microorganisms:

1. Minute organisms are seen under a microscope.
2. Microorganisms are so small that are invisible to the naked eye.

The major group of microorganisms :

1. Bacteria: Bacillus, Spirillum, Rickettsia.
2. Fungi: Bread molds.
3. Protozoa: Amoeba, Plasmodium
4. Algae: Spirogyra, Chlamydomonas.

Uses of microorganisms are:

1. Used in bakeries these days for baking food.
2. Play an important role in the process of digestion in our body.
3. Lactobacillus is responsible for curd formation.
4. Production of vitamins and minerals in our body.
5. Some bacteria are involved in nitrogen fixation.

Harmful effects of microorganisms are:

1. Food spoilage
2. Spreading of harmful diseases like tuberculosis, cholera, etc.