Do, microorganisms are harmful to us or useful?

Dear Nitu,

A microorganism or microbe is an organism that is microscopic, which means too small to see with the naked eye. These may exist in its single-celled form or in a colony of cells.

These are unicellular organisms.

Bacteria, viruses, fungi, protozoa, and algae are some examples of microorganisms.

The study of microorganisms is known as microbiology.

Let's take the example of Bacteria and their uses.

The studies of the morphology, genetics, ecology, and biochemistry of bacteria, as well as many other aspects related to them for the use of human existence, is known as Bacteriology.

Here is the list of the uses of Bacteria.

1. In the pharmaceutical industry, bacteria are used to produce vaccines, antibiotics, and medically-useful enzymes. Most of these antibiotics are made by bacteria that live in the soil.

2. It has produced human hormones such as insulin, and enzymes such as streptokinase which are used in various medical

conditions and diseases including diabetes, heart attack, tuberculosis, AIDS, and SLE.

3. It is used in fermentation processes, such as baking, brewing, and manufacturing of cheese and butter.

4. It is used in chemical manufacturing, such as the production of acetone, ethanol, organic acids, and perfumes.

5. It is used as energy, in the form of biogas (methane).

6. It is used in decomposing sewage waste.

7. It is used in agriculture, such as composting processes and use as pesticides.