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9th Science Chapter 6 Living World of Plants - Plant Physiology One Mark Question with Answer Question Bank Software Aug-27 , 2019

Living World of Plants - Plant Physiology

9th Science Chapter 6 Living World of Plants - Plant Physiology One Mark Question with Answer

Living World of Plants - Plant Physiology One Mark Questions

9th Standard

    Reg.No. :
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Science

Time : 00:30:00 Hrs
Total Marks : 20
    5 x 1 = 5

  1. A big tree falls in a forest but its roots are still in contact with the soil. The branches of this fallen tree straight up. This happens in response to __________

    (a)

    water and light

    (b)

    water and minerals

    (c)

    gravity and water

    (d)

    light and gravity

  2. The bending of root of a plant in response to water is called _________ 

    (a)

    thigmonasty

    (b)

    phototropism

    (c)

    hydrotropism

    (d)

    photonasty

  3. Desmodium gyrans is commonly known as_______________.

    (a)

    Money plant

    (b)

    Rose plant

    (c)

    Telegraph plant

    (d)

    Lilly plant.

  4. Mimosa pudica is also known as__________________.

    (a)

    Nepenthes

    (b)

    Telegraph plant

    (c)

    Dancing plant

    (d)

    Thotta Surungi

  5. The tip of the shoot is known as_______________.

    (a)

    Choleoptile

    (b)

    Colon

    (c)

    Coleorhiza

    (d)

    Collar.

    6. 5 x 1 = 5

  6. The shoot system grows upward in response to ___________.

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    Light

  7. __________ is positively hydrotropic as well as positively geotropic.

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    Root

  8. The green pigment present in the plant is __________

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    chlorophyll

  9. The leaves of __________closes on touching.

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    Mimosa pudica

  10. Helianthus annus follows the path of the sun from______________.

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    dawn to dusk

    11. 6 x 1 = 6

  11. The response of a part of plant to the chemical stimulus is called phototropism.

    (a) True
    (b) False

  12. Shoot is positively phototropic and negatively geotropic.

    (a) True
    (b) False

  13. Scientific term used to represent the bending of roots towards water is called geotropism.

    (a) True
    (b) False

  14. The stalk of the Helianthus annus follows the path of the sun from dawn to dusk and during night it moves from west to east.

    (a) True
    (b) False

  15. Plants can move on their own from one location to another

    (a) True
    (b) False

  16. Desmodium gyrans was used by Charles Darwin for his experiment

    (a) True
    (b) False
    17. 4 x 1 = 4

  17. Roots growing downwards into soil

    18. (1)

    Negative phototropism

  18. Shoots growing towards the light

    19. (2)

    Positive phototropism.

  19. Shoots growing upward

    20. (3)

    Positive geotropism

  20. Roots growing downwards away from light

    21. (4)

    Negative geotropism

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