Learn the chapter Microorganisms: Friend and Foe with Notes, solutions to NCERT Questions and Extra Questions. It is Chapter 2 Class 8 Science of the
NCERT Book
.
In this chapter, we will learn
-
What are
Microorganisms?
-
Different Types
of Microorganisms - like Bacteria, Protozoa, Algae, Fungi and Virus. Their figure, examples and definition are also explained
-
Then, we will learn about some basic facts about them. Like
-
Are microorganisms
unicellular or multicellular
-
Where do microorganisms
live
-
Are microorganisms
good for us, or are bad for us?
-
Some important
uses of Microorganisms
- in making curd, bread, alcohol, medicines, agriculture
-
Harmful Microorganisms
like Pathogens - which causes diseases in Humans, Animals and Plants
-
The
Disease caused
by microorganism, which microorganisms caused it, and how is it transmitted
-
Then, we will learn about
Food Poisoning
-
A basic introduction about
Food Preservation
-
And finally, we will learn about what is
Nitrogen Fixation
-
And What
Nitrogen Cycle
is
In addition to this, we have added some important questions... which you can check in the Extra Question section below.
Click on a link below to start doing the chapter