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Botany - Economically Useful Plants and Entrepreneurial Botany Practice Question Paper

12th Standard

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Biology

Time : 01:00:00 Hrs
Total Marks : 50
    8 x 1 = 8
  1. Tectona grandis is coming under family _____.

    (a)

    Lamiaceae

    (b)

    Fabaceae

    (c)

    Dipterocaipaceae

    (d)

    Ebenaceae

  2. 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

  3. 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

  4. Match the common names of the given plant species with their respective binomial

    (A) Paddy (I) Vigna radiata
    (B) Lady's finger  (II) Titicum aestivum
    (C) Wheat  (III) Oryza sativa
    (D) Green gram (IV) Abelmoschus esculentus
    (a)

    A-iii, B-iv, C-ii and D-i 

    (b)

    A-ii, B-iii, C-i and D-iv

    (c)

    A - i, B - iii, C - iv and D - ii

    (d)

     A - i, B - ii, C - iv and D - iii

  5. Identify the tamil name for flaked rice

    (a)

      Nel

    (b)

    Aval  

    (c)

    Pori

    (d)

    Umi

  6. Statement 1: Chinese discovered the paper.
    Statement 2: Eucalyptus and Casuarina are the widely used tree species for making paper pulp.

    (a)

    Statement 1 is correct and Statement 2 is also correct

    (b)

    Statement 1 is correct and Statement 2 is incorrect

    (c)

    Statement 1 is incorrect and Statement 2 is correct

    (d)

    Both the Statements are incorrect

  7. Statement 1: Aloe vera belongs to the family Asphodelaceae.
    Statement 2: Jasminum grandiflorum belongs to the family of Oleaceae.

    (a)

    Statement 1 is correct and Statement 2 is also correct

    (b)

    Statement 1 is correct and Statement 2 is incorrect

    (c)

    Statement 1 is incorrect and Statement 2 is correct

    (d)

    Both the Statements are incorrect

  8. The plant source of Marijuana is ________

    (a)

    Andrograph is paniculata

    (b)

    Phyllanthus maderspatensis

    (c)

    Cannabis sativa

    (d)

    Papaver somniferum

  9. 2 x 1 = 2
  10. Which district of Tamil Nadu is the World's largest wholesale turmeric dealer?

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    Erode

  11. The principal coloring agent present in the leaf paste of Lawsonia inermis which give orange to dark red when applied on skin is ______

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    Lacosone

  12. 1 x 1 = 1
  13. Which state of India ranks first in coffee consumption?

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    Tamil Nadu

  14. 6 x 2 = 12
  15. Discuss which wood is better for making furniture.

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

  17. Name any four millet varieties.

  18. Why do we take vegetables in our diet?

  19. What is toddy?

  20. What does NCB stands for? Mention its role.

  21. 4 x 3 = 12
  22. Write the origin and area of cultivation of green gram and red gram.

  23. Enumerate the uses of turmeric

  24. Mention the ways in which mangoes are used in Indian culinary.

  25. Name the plant source from which the following products are obtained.
    (a) Maida
    (b) Rubber
    (c) Morphine
    (d) Coffee

  26. 3 x 5 = 15
  27. Write the economic importance of rice.

  28. How will you prepare an organic pesticide for your home garden with the vegetables available from your kitchen?

  29. Draw a table mentioning binominals, family name, useful part and their medical uses of any five local medicinal plants

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