Class 8ScienceMicroorganisms: Friend and Foe
Useful Microorganisms
Bacteria in curd making (Lactobacillus converts milk→curd). Yeast for bread (CO₂ makes bread rise) and alcohol (fermentation). Bacteria in nitrogen fixation (Rhizobium in roots of legumes converts N₂→ammonia). Decomposers break dead matter into minerals. Antibiotics (Penicillin from Penicillium fungus) fight bacterial infections.
10 examples
Concept check 1
For Class 8 Science, explain or solve a useful microorganisms question from the chapter "Microorganisms: Friend and Foe". Focus on concept check and show the working clearly.
Definition to application 2
For Class 8 Science, explain or solve a useful microorganisms question from the chapter "Microorganisms: Friend and Foe". Focus on definition to application and show the working clearly.
Formula warm-up 3
For Class 8 Science, explain or solve a useful microorganisms question from the chapter "Microorganisms: Friend and Foe". Focus on formula warm-up and show the working clearly.
Reasoning practice 4
For Class 8 Science, explain or solve a useful microorganisms question from the chapter "Microorganisms: Friend and Foe". Focus on reasoning practice and show the working clearly.
Board-style short answer 5
For Class 8 Science, explain or solve a useful microorganisms question from the chapter "Microorganisms: Friend and Foe". Focus on board-style short answer and show the working clearly.
Mistake correction 6
For Class 8 Science, explain or solve a useful microorganisms question from the chapter "Microorganisms: Friend and Foe". Focus on mistake correction and show the working clearly.
Visual interpretation 7
For Class 8 Science, explain or solve a useful microorganisms question from the chapter "Microorganisms: Friend and Foe". Focus on visual interpretation and show the working clearly.
Applied word problem 8
For Class 8 Science, explain or solve a useful microorganisms question from the chapter "Microorganisms: Friend and Foe". Focus on applied word problem and show the working clearly.
Revision challenge 9
For Class 8 Science, explain or solve a useful microorganisms question from the chapter "Microorganisms: Friend and Foe". Focus on revision challenge and show the working clearly.
Exam recap 10
For Class 8 Science, explain or solve a useful microorganisms question from the chapter "Microorganisms: Friend and Foe". Focus on exam recap and show the working clearly.