Botany: Short Answer Type Questions on Microbes in Human Welfare

  1. Why are flocs important in biological treatment of waste water?
  2. How has the bacterium Bacillus thuringiensis helped us in controlling caterpillars of insect pests?
  3. How do mycorrhizal fungi help the plants harboring them?
  4. Why are cyanobacteria considered useful in paddy fields?
  5. How was penicillin discovered?
  6. Write the chemical nature of biogas. Name one organism which produces biogas.
  7. Describe broad-spectrum antibiotic. Give an example.
  8. What is another name used to address the viruses parasitizing bacteria?
  9. Giving two examples describe biofertilizers.
  10. What is the role of microbes in reducing environmental degeneration caused by chemicals?

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