Botany - Asexual and Sexual Reproduction in Plants Model Question Paper

12th Standard EM

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Biology

Time : 02:00:00 Hrs
Total Marks : 50
    10 x 1 = 10
  1. An eminent Indian embryologist is

    (a)

    S.R.Kashyap

    (b)

    P.Maheswari

    (c)

    M.S. Swaminathan

    (d)

    K.C.Mehta

  2. Identify the correctly matched pair

    (a)

    Tuber - Allium cepa

    (b)

    Sucker - Pistia

    (c)

    Rhizome - Musa

    (d)

    Stolon - Zingiber

  3. Identify the incorrect pair

    (a)

    sporopollenin - exine of pollen grain

    (b)

    tapetum – nutritive tissue for developing microspores

    (c)

    Nucellus – nutritive tissue for developing embryo

    (d)

    obturator – directs the pollen tube into micropyle

  4. Which of the following represent megagametophyte

    (a)

    Ovule

    (b)

    Embryo sac

    (c)

    Nucellus

    (d)

    Endosperm

  5. In Haplopappus gracilis, number of chromosomes in cells of nucellus is 4. What will be the chromosome number in Primary endosperm cell?

    (a)

    8

    (b)

    12

    (c)

    6

    (d)

    2

  6. The scar left by funiculus in the seed is

    (a)

    tegmen

    (b)

    radicle

    (c)

    epicotyl

    (d)

    hilum

  7. A Plant called X possesses small flower with reduced perianth and versatile anther. The probable agent for pollination would be

    (a)

    water

    (b)

    air

    (c)

    butterflies

    (d)

    beetles

  8. Coelorhiza is found in

    (a)

    Paddy

    (b)

    Bean

    (c)

    Pea

    (d)

    Tridax

  9. Parthenocarpic fruits lack

    (a)

    Endocarp

    (b)

    Epicarp

    (c)

    Mesocarp

    (d)

    seed

  10. Innermost layer of anther wall is ________________

    (a)

    Endothecium

    (b)

    Endothecum

    (c)

    Endothelium

    (d)

    Tapetum

  11. 5 x 1 = 5
  12. Conidia

  13. (1)

    Zingiber officinale

  14. Gemma cups

  15. (2)

    Aspergillus

  16. Rhizome

  17. (3)

    Elongated funiculus surrounds ovule

  18. Corm

  19. (4)

    Colocasia

  20. Circinotropus

  21. (5)

    Marchantia

    5 x 2 = 10
  22. What is reproduction?

  23. List out two sub-aerial stem modifications with example.

  24. What are clones?

  25. Differentiate Grafting and Layering.

  26. Distinguish mound layering and air layering.

  27. 5 x 3 = 15
  28. Discuss the importance of Modern methods in reproduction of plants.

  29. What is endothelium

  30. Define the term Diplospory

  31. What is Mellitophily?

  32. List out the functions of tapetum.

  33. 2 x 5 = 10
  34. With a suitable diagram explain the structure of an ovule.

  35. Differentiate the structure of Dicot and Monocot seed.

*****************************************

TN 12th Standard EM Biology free Online practice tests

Reviews & Comments about 12th Standard Biology - Botany - Asexual and Sexual Reproduction in Plants Model Question Paper

Write your Comment