Revision Notes For Class 12 Biology Chapter 10 Microbes In Human Welfare

Microbes are usually perceived as bad due to their association with diseases and illness. But there are also “good” microbes that provide many benefits in various areas. From bacteria in your guts to protozoans that aid in nitrogen fixation, microbes are proving to be one of the most useful organisms on the planet.

Even the oxygen in our atmosphere was produced by tiny microbes called cyanobacteria billions of years ago. Our human body functions the way it does because it hosts tens of trillions of bacteria – both on the surface and inside. And most of them are very important for our survival as they aid in digestion and provide immunity. Learn more about these microbes by referring Class 12 Biology Revision Notes Chapter 10 – Microbes in Human Welfare, right here on BYJU’s.

Browse CBSE Class 12 Biology Chapter 10 Notes 

Further Reading

Useful Microorganisms

Frequently asked Questions on CBSE Class 12 Biology Notes Chapter 10: Microbes in Human Welfare


What are the uses of microbes?

Microorganisms help in the production of many food items, making medicines, keeping the environment clean, in manufacturing and in research.


What are types of microbes?

The major groups of microorganism: namely bacteria, archaea, fungi (yeasts and molds), algae, protozoa, and viruses.


What is ‘Nitrogen fixation’?

Nitrogen fixation is the process by which nitrogen is taken from its molecular form in the atmosphere and converted into nitrogen compounds useful for other biochemical processes.


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