Microorganisms - Chapter Wise CBSE Solved Question and Answer Based On NCERT
Points To Remember:
Microorganisms are too small that we cannot see them with unaided eye. They are found in air, water and inside the bodies of Plants and animals
They can live in all kinds of environment ranging from very cold climate to hot springs and deserts to marshy areas
They may be unicellular or multicellular
Microorganisms are broadly classified into four major groups namely bacteria, fungi, protozoa, and some algae
Viruses are quite different from other microorganisms, they are non-living outside host cell but as soon as they enters host cell they became living by showing all characteristics of living organisms
Microorganisms are very useful to us; some are used in commercial production of medicines and alcohol while some are eco-friendly and helps in cleaning our environment
Some microorganisms are harmful as they cause serious diseases in plants and animals. Some of the microorganisms grow on our food stuffs and cause food poisoning
Some microorganisms reside in root nodules of leguminous plants and fixes atmospheric nitrogen into nitrates and increases soil fertility
