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12th Standard Botany - Economically Useful Plants and Entrepreneurial Botany English Medium Online Test 1 Mark Questions with Answer Key

12th Standard

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Botany

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

    Answer all the questions

    10 x 1 = 10
  1. Assertion: Vegetables are important part of healthy eating.
    Reason: Vegetables are succulent structures of plants with pleasant aroma and flavours.

    (a)

    Assertion is correct, Reason is wrong

    (b)

    Assertion is wrong, Reason is correct

    (c)

    Both are correct and reason is the correct explanation for assertion.

    (d)

    Both are correct and reason is not the correct explanation for assertion.

  2. Assertion: Turmeric fights various kinds of cancer
    Reason: Curcumin is an anti-oxidant present in turmeric

    (a)

    Assertion is correct, Reason is wrong

    (b)

    Assertion is wrong, Reason is correct

    (c)

    Both are correct

    (d)

    Both are wrong

  3. 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

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

    (a)

    Opium

    (b)

    Curcuma

    (c)

    Marijuana 

    (d)

    Andrographis

  5. 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

  6. Identify the tamil name for flaked rice

    (a)

      Nel

    (b)

    Aval  

    (c)

    Pori

    (d)

    Umi

  7. Statement 1: Andrographis paniculata is known as King of Bitters.
    Statement 2: The decoction of Andrographis is used against Diabetes mellitus.

    (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. Assertion (A): Turmeric is used to treat cancer.
    Reason (R): Curcumin is biomolecule present in turmeric.

    (a)

    A is right R is wrong

    (b)

    Both A and R are wrong

    (c)

    A is wrong R is right

    (d)

    A and R are right. R explains A.

  9. Select the new world species of cotton.
    (i) Gossypium hirsutum
    ii) Gossypium barbadense
    (iii) Gossypium arboreum
    (iv) Gossypium herbacecum

    (a)

    i and ii only

    (b)

    i and iii only

    (c)

    iii and iv only

    (d)

     ii and iv only

  10. Identify the incorrect statements:
    (a) Morphine is used as potent hepatoprotective.
    (b) Phyllanthin is used as a strong analgesic in surgery.
    (c) Indian Acalypha is used to cure skin diseases.
    (d) Cissus quadrangularis is widely used for treating bone fractures.

    (a)

    a and c

    (b)

    a and d

    (c)

    b and c

    (d)

    a and b

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