Botany - Economically Useful Plants and Entrepreneurial Botany Book Back Questions

12th Standard EM

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Biology

Time : 00:45:00 Hrs
Total Marks : 30
    5 x 1 = 5
  1. Consider the following statements and choose the right option.
    i) Cereals are members of grass family.
    ii) Most of the food grains come from monocotyledon.

    (a)

    (i) is correct and (ii) is wrong

    (b)

    Both (i) and (ii) are correct

    (c)

    (i) is wrong and (ii) is correct

    (d)

    Both (i) and (ii) are wrong

  2. Tamarindus indica is indigenous to

    (a)

    Tropical African region

    (b)

    South India, Sri Lanka

    (c)

    South America, Greece

    (d)

    India alone

  3. New world species of cotton

    (a)

    Gossipium arboretum

    (b)

    G.herbaceum

    (c)

    Both a and b

    (d)

    G.barbadense

  4. 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

  5. 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

  6. 3 x 2 = 6
  7. Name the humors that are responsible for the health of human beings.

  8. Give definitions for organic farming?

  9. Which is called as the “King of Bitters”? Mention their medicinal importance.

  10. 3 x 3 = 9
  11. Enumerate the uses of turmeric

  12. What is TSM? How does it classified and what does it focuses on?

  13. Write the uses of nuts you have studied.

  14. 2 x 5 = 10
  15. Write the economic importance of rice.

  16. Which TSM is widely practiced and culturally accepted in Tamil Nadu? - explain.

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TN 12th Standard EM Biology free Online practice tests

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