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Set 2 of 2 · Questions 31-47 of 47

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NEET Biology · Microbes in Human Welfare · Set 2 (Q31-47)

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  1. 31.
    The most common substrate used in distilleries for the production of ethanol is
    1. (1)Soya meal
    2. (2)Ground gram
    3. (3)Molasses
    4. (4)Corn meal
  2. 32.
    Monascus purpureus is a yeast used commercially in the production of :-
    1. (1)citric acid
    2. (2)blood chlolesterol lowering statins
    3. (3)ethanol
    4. (4)streptokinase for removing clots from the blood vessels.
  3. 33.
    Which of the following is wrongly matched in the given table?

    Microbe
    Product
    Application
    1. (1)Trichoderma polysporum
      Cyclosporin A
      Immunosuppressive drug
    2. (2)Monascus purpureus
      Statins
      Lowering of blood cholesterol
    3. (3)Streptococcus
      Streptockinase
      Removal of clot from blood vessel
    4. (4)Clostridium butylicum
      Lipase
      Removal of oil stains
  4. 34.
    Read the following statement having two blanks (A and B) : "A drug used for ____(A)___ patients is obtained from a species of the organism ____(B)____ ." The one correct option for the two blanks is:
    Blank – (A) Blank – (B)
    1. (1)AIDS Pseudomonas
    2. (2)Heart Penicillium
    3. (3)Organ-transplant Trichoderma
    4. (4)Swine flu Monascus
  5. 35.
    Match Column – I with Column – II and select the correct options using the codes given below:
    1. (1)(I)-(C), (II)-(A), (III)-(D), (IV)-(B)
    2. (2)(I)-(A), (II)-(D), (III)-(B), (IV)-(C)
    3. (3)(I)-(C), (II)-(D), (III)-(A), (IV)-(B)
    4. (4)(I)-(C), (II)-(A), (III)-(B), (IV)-(D)
  6. 36.
    Which of the following microbes forms symbiotic association with plants and helps them in their nutrition?
    1. (1)Azotobacter
    2. (2)Aspergillus
    3. (3)Glomus
    4. (4)Trichoderma
  7. 37.
    During sewage treatment, biogases are produced which includes
    1. (1)Methane, hydrogen sulphide, carbon dioxide
    2. (2)Methane, oxygen, hydrogen sulphide
    3. (3)Hydrogen sulphide, methane, sulphur dioxide
    4. (4)Hydrogen sulphide, nitrogen, methane
  8. 38.
    Ethanol is commercially produced through a particular species of
    1. (1)Clostridium
    2. (2)Trichoderma
    3. (3)Aspergillus
    4. (4)Saccharomyces
  9. 39.
    In gober gas, the maximum amount is that of :-
    1. (1)Propane
    2. (2)Carbon dioxide
    3. (3)Butane
    4. (4)Methane
  10. 40.
    What gases are produced in anaerobic sludge digesters?
    1. (1)Methane and only
    2. (2)Methane, hydrogen sulphide and
    3. (3)Methane, hydrogen sulphide and
    4. (4)Hydrogen sulphide and CO
  11. 41.
    The source of cyclosporin-A is :-
    1. (1)Acetobacter aceti
    2. (2)Saccharomyces cerevisiae
    3. (3)Aspergillus niger
    4. (4)Trichoderma polysporum
  12. 42.
    The domestic sewage in large cities
    1. (1)Is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plant (STPs).
    2. (2)When treated in STPs does not really require the aeration step as the sewage contains adequate oxygen.
    3. (3)Has very high amounts of suspended solids and dissolved salts.
    4. (4)Has a high BOD as it contains both aerobic and anaerobic bacteria.
  13. 43.
    Secondary sewage treatment is mainly a
    1. (1)Mechanical process
    2. (2)Chemical process
    3. (3)Biological process
    4. (4)Physical process
  14. 44.
    An example of endomycorrhiza is
    1. (1)Nostoc
    2. (2)Glomus
    3. (3)Agaricus
    4. (4)Rhizobium
  15. 45.
    Which one of the following is an example of carrying out biological control of pests/ diseases using microbes?
    1. (1)Bt-Cotton to increase cotton yield
    2. (2)Lady bird beetle against aphids in mustard
    3. (3)Trichoderma sp. against certain plant pathogens.
    4. (4)Nucleopolyhedrovirus against white rust in Brassica
  16. 46.
    Which of the following match is incorrect?
    1. (1)Miller's experiment – 1953
    2. (2)Discovery of Penicillin – 1945
    3. (3)Human Genome Project – 1990
    4. (4)Rediscovery of Mendelian results – 1900
  17. 47.
    Baculoviruses are employed as
    1. (1)Biogas production
    2. (2)Bicontrol agents
    3. (3)Sewage treatment agents
    4. (4)Biofertiliser