Chapter 2: Microorganisms – Friend and Foe

Topic 1: Microorganisms

Topic 2: Friendly microorganisms

Topic 3: Commercial use of microorganisms

Topic 4: Medicinal uses of microorganisms

Topic 5: Vaccine                                                                                            

Topic 6: Disease causing microorganisms in humans

Topic  7: Communicable diseases

Topic  8: Diseases spread by carriers

Topic 9: Disease causing microorganisms in animals

Topic 10: Disease causing microorganisms in plants

Topic 11: Food poisoning

Topic 12: Food preservation

Topic 13: Nitrogen fixation

Topic 14: Nitrogen cycle

Multiple choice questions

Question and answers

Note book

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