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12th Standard English Medium Biology (Zoology) Subject Microbes in Human Welfare Book Back 1 Mark Questions with Solution Part - I

12th Standard

    Reg.No. :
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Biology

Time : 01:00:00 Hrs
Total Marks : 10

    1 Marks

    5 x 1 = 5
  1. Which of the following microorganism is used for production of citric acid in industries?

    (a)

    Lactobacillus bulgaris

    (b)

    Penicillium citrinum

    (c)

    Aspergillus niger

    (d)

    Rhizopus nigricans

  2. Which of the following pair is correctly matched for the product produced by them?

    (a)

    Acetobacter aceti - Antibiotics

    (b)

    Methanobacterium - Lactic acid

    (c)

    Penicilium notatum - Acetic acid

    (d)

    Saccharomyces cerevisiae - Ethanol

  3. The most common substrate used in distilleries for the production of ethanol is_________

    (a)

    Soyameal

    (b)

    Groundgram

    (c)

    Molasses

    (d)

    Corn meal

  4. Cry toxins obtained from Bacillus thuringiensis are effective against for______

    (a)

    Mosquitoes

    (b)

    Flies

    (c)

    Nematodes

    (d)

    Bollworms

  5. Cyclosporin – A is an immunosuppressive drug produced from _______

    (a)

    Aspergillus niger

    (b)

    Manascus purpureus

    (c)

    Penicillium notatum

    (d)

    Trichoderma polysporum

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