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12th Standard English Medium Biology (Botany) Subject Economically Useful Plants and Entrepreneurial Book Back 1 Mark Questions with Solution Part -II

12th Standard

    Reg.No. :
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Biology

Time : 01:00:00 Hrs
Total Marks : 5

    1 Marks

    5 x 1 = 5
  1. Observe the following statements and pick out the right option from the following:
    Statement I – Perfumes are manufactured from essential oils.
    Statement II – Essential oils are formed at different parts of the plants.

    (a)

    Statement I is correct

    (b)

    Statement II is correct

    (c)

    Both statements are correct

    (d)

    Both statements are wrong

  2. Observe the following statements and pick out the right option from the following:
    Statement I: The drug sources of Siddha include plants, animal parts, ores and minerals.
    Statement II: Minerals are used for preparing drugs with long shelf-life.

    (a)

    Statement I is correct

    (b)

    Statement II is correct

    (c)

    Both statements are correct

    (d)

    Both statements are wrong

  3. The active principle trans-tetra hydro canabial is present in ______.

    (a)

    Opium

    (b)

    Curcuma

    (c)

    Marijuana 

    (d)

    Andrographis

  4. Which one of the following matches is correct?

    (a)

    Palmyra - Native of Brazil

    (b)

    Saccharun - Abundant in Kanyakumari

    (c)

    Steveocide - Natural sweetener

    (d)

    Palmyra sap - Fermented to give ethanol

  5. The only cereal that has originated and domesticated from the New world.

    (a)

    Oryza sativa

    (b)

    Triticum asetumn

    (c)

    Triticum duram

    (d)

    Zea mays

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