Botany - Asexual and Sexual Reproduction in Plants Book Back Questions

12th Standard EM

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Biology

Time : 00:45:00 Hrs
Total Marks : 30
    5 x 1 = 5
  1. Choose the correct statement from the following

    (a)

    Gametes are involved in asexual reproduction

    (b)

    Bacteria reproduce asexually by budding

    (c)

    Conidia formation is a method of sexual reproduction

    (d)

    Yeast reproduce by budding

  2. Identify the correctly matched pair

    (a)

    Tuber - Allium cepa

    (b)

    Sucker - Pistia

    (c)

    Rhizome - Musa

    (d)

    Stolon - Zingiber

  3. Arrange the layers of anther wall from locus to periphery

    (a)

    Epidermis,middle layers, tapetum, endothecium

    (b)

    Tapetum, middle layers, epidermis, endothecium

    (c)

    Endothecium, epidermis, middle layers, tapetum

    (d)

    Tapetum, middle layers endothecium epidermis

  4. Assertion : Sporopollenin preserves pollen in fossil deposits
    Reason : Sporopollenin is resistant to physical and biological decomposition

    (a)

    assertion is true; reason is false

    (b)

    assertion is false; reason is true

    (c)

    Both Assertion and reason are not true

    (d)

    Both Assertion and reason are true.

  5. Transmitting tissue is found in

    (a)

    Micropylar region of ovule

    (b)

    Pollen tube wall

    (c)

    Stylar region of gynoecium

    (d)

    Integument

  6. 3 x 2 = 6
  7. What is reproduction?

  8. A detached leaf of Bryophyllum produces new plants. How?

  9. Distinguish mound layering and air layering.

  10. 3 x 3 = 9
  11. Discuss the importance of Modern methods in reproduction of plants.

  12. What is endothelium

  13. What is polyembryony. How it can commercially exploited.

  14. 2 x 5 = 10
  15. Write short note on Pollen kitt.

  16. Distinguish tenuinucellate and crassinucellate ovules.

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