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Zoology - Microbes in Human Welfare 1 Mark Creative Question Paper With Answer Key

12th Standard

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Biology

Time : 00:15:00 Hrs
Total Marks : 15

    Multiple Choice Question

    15 x 1 = 15
  1. Cry toxins obtained from Bacillus thuringiensis are effective against for______

    (a)

    Mosquitoes

    (b)

    Flies

    (c)

    Nematodes

    (d)

    Bollworms

  2. Which of the following bacteria is used extensively as a bio-pesticide?

    (a)

    Bacillus thurigiensis

    (b)

    Bacillus subtilis

    (c)

    Lactobacillus acidophilus

    (d)

    Streptococcus lactis

  3. Which of the following is not involved in nitrogen fixation?

    (a)

    Pseudomonas

    (b)

    Azotobacter

    (c)

    Anabaena

    (d)

    Nostac

  4. The enzyme________is got from Aspergillus.

    (a)

    Rennet

    (b)

    Zymase

    (c)

    Amylase

    (d)

    Lipase

  5. WorId Biofuel day is observed on_______

    (a)

    10th September

    (b)

    22nd April

    (c)

    10th August

    (d)

    17th October

  6. Lactobacillus helps to produce________

    (a)

    Citric acid

    (b)

    Milk

    (c)

    Acetic acid

    (d)

    Butyric acid

  7. Aspergillus niger helps to produce________

    (a)

    Citric acid

    (b)

    Acetic acid

    (c)

    Turmeric acid

    (d)

    Lactic acid

  8. Genetically engineered __________are used as clot buster in cardiac related issues

    (a)

    Staphylococcus

    (b)

    Yeast

    (c)

    Penicillium

    (d)

    Streptococci

  9. _________got from fungi is used as an immune suppressant in organ transplantation.

    (a)

    Statin

    (b)

    Cyclosporin A

    (c)

    Insulin

    (d)

    Protease

  10. The first bio herbicide was got from_______

    (a)

    Trichoderma

    (b)

    Phytophthora species

    (c)

    Bacillus

    (d)

    Aspergillus

  11. ________is not used as a biofertilizer

    (a)

    Bacillus thuringiensis

    (b)

    Rhizobium

    (c)

    Nostoc

    (d)

    Anabaena

  12. _________is used for recycling of PET plastics

    (a)

    Dechloromonas aromatica

    (b)

    Phanerochaete chrysosporium

    (c)

    Ideonella sakaiensis

    (d)

    Nitrosomonas

  13. __________is free living bacteria which acts as a biofertilizer.

    (a)

    Azospirillum

    (b)

    Nostoc

    (c)

    Oscillatoria

    (d)

    Glomus

  14. Mycorrhiza cannot contribute to this process.

    (a)

    Resistance to pathogens

    (b)

    Tolerance to salinity

    (c)

    Help to fix nitrogen

    (d)

    Enhance plant growth

  15. Enzyme used for removing oily stains from the clothes:

    (a)

    Cellulase

    (b)

    Pectinase

    (c)

    Protease

    (d)

    Lipase

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