Reproduction and Modification in Plants Important Questions

7th Standard EM

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Science

Time : 01:00:00 Hrs
Total Marks : 50
    6 x 1 = 6
  1. Vegetative propagation by leaves takes place in

    (a)

    Bryophyllum

    (b)

    Fungi

    (c)

    Virus

    (d)

    Bacteria

  2. Asexual reproduction in yeast is

    (a)

    Spore formation

    (b)

    Fragmentation

    (c)

    Pollination

    (d)

    Budding

  3. Climbing roots are seen in

    (a)

    Betel

    (b)

    Black pepper

    (c)

    Both of them

    (d)

    None of them

  4. Breathing Roots are seen in ________

    (a)

    Tarpa

    (b)

    Avicennia

    (c)

    Eicchornia

    (d)

    pisum

  5. _________ is a parasite.

    (a)

    Cuscuta

    (b)

    Hibiscus

    (c)

    yeast

    (d)

    Spirogyra

  6. Stilt Roots are seen in _______

    (a)

    Vanda

    (b)

    Sugar cane

    (c)

    Banyan

    (d)

    Carrot

  7. 5 x 1 = 5
  8. The male reproductive part of a flower is ________.

    ()

    Androecium

  9. After fertilization the ovule becomes _________.

    ()

    seed

  10. Onion and Garlic are example of _______.

    ()

    Bulb

  11. The tissue seen in epiphytic roots is called ___________

    ()

    Velamen

  12. In Gloriosa __________ is modified into a tendilleaf tip.

    ()

    leaf tip

  13. 4 x 1 = 4
  14. A complete flower has four whorls.

    (a) True
    (b) False
  15. The transfer of pollen to the stigma is known as pollination.

    (a) True
    (b) False
  16. Ginger is an underground root.

    (a) True
    (b) False
  17. Leaves of Aloe vera are fleshy and store water.

    (a) True
    (b) False
  18. 5 x 1 = 5
  19. Petal

  20. (1)

    Chrysanthemum

  21. Phylloclade

  22. (2)

    Attracts insect

  23. Sucker

  24. (3)

    offset

  25. Vanda

  26. (4)

    epiphyte

  27. Eicchomia

  28. (5)

    Opuntia

    2 x 2 = 4
  29. Pollen, anther, ovule, filament

  30. Haustoria, Velamen, Prop Roots, Phylloda.

  31. 2 x 2 = 4
  32. Observe the picture and draw the labels.
    ​​​​

  33. Identify the four plants shown in the following Name the different modification in each of them.

      Name Modification
    1 Garlic  
    2 Turnip  
    3 Rose plant  
    4 Maize  
  34. 4 x 2 = 8
  35. Write two types of reproduction in plants.

  36. Define – pollination.

  37. What is tendril?

  38. What is fertilization.

  39. 3 x 3 = 9
  40. Differentiate bisexual flower from unisexual flower?

  41. Write notes on phyllode.

  42. Differentiate self pollination and cross pollination

  43. 1 x 5 = 5
  44. Draw a diagram to show the life cycle of a plant.

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