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Zoology - Microbes in Human Welfare - Two Marks Study Materials

12th Standard

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Biology

Time : 00:45:00 Hrs
Total Marks : 30
    15 x 2 = 30
  1. How is milk converted into curd? Explain the process of curd formation

  2. Give any two bioactive molecules produced by microbes and state their uses.

  3. What is biological oxygen demand?

  4. What is biocontrol?

  5. What are biopesticides?

  6. What are crygenes?

  7. What is the significance of cyanobacteria as a biofertilizer?

  8. Define bioremediation

  9. Why is curd more nutritious than milk?

  10. What is fermentor?

  11. Give reason. (a) Flavour in Yogurt
    (b) Large holes in Swiss Cheese

  12. Name few industrial microbial products.

  13. Name any four antibiotics

  14. Compare Broad spectrum antibiotics with narrow-spectrum antibiotics

  15. Define (a) Antibiosis (b) Superbugs

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