Vegetative Morphology Important Questions

11th Standard

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Biology

Answer all the questions

Time : 02:00:00 Hrs
Total Marks : 50
    10 x 1 = 10
  1. Roots are

    (a)

    Descending, negatively geotropic, positively phototropic

    (b)

    Descending, positively geotropic, negatively phototropic

    (c)

    Ascending, positively geotropic, negatively phototropic

    (d)

    Ascending, negatively geotropic, positively phototropic

  2. In Nymphaea the stem is a

    (a)

    rhizome

    (b)

    bulb

    (c)

    tuber

    (d)

    corm

  3. The stem is modified to cladode and leaves are modified as scales in ____

    (a)

    Lily

    (b)

    Opuntia

    (c)

    Asparagus

    (d)

    Gloriosa

  4. Root that grow from any part of the plant body other than the radicle are called _____

    (a)

    Tap root

    (b)

    Adventitious root

    (c)

    Modified roots

    (d)

    Aerial roots

  5. Stilt roots are seen in _____

    (a)

    Zea mays

    (b)

    Delonix regia

    (c)

    Begonia

    (d)

    Ficus

  6. Bulbophyllum is an example for ____

    (a)

    Rhizome

    (b)

    Bulb

    (c)

    Pseudobulb

    (d)

    Tuber

  7. Match the following:

    (i) Conical root (a) Mechanical support
    (ii) Tuberous root (b) Orchids
    (iii) Climbing root (c) Food storage
    (iv) Epiphytic root (d) Daucus carota
    (a)

    (i)-(d), (ii)-(b), (iii)-(a), (iv)-(c)

    (b)

    (i)-(d), (ii)-(c), (iii)-(a), (iv)-(b)

    (c)

    (i)-(b), (ii)-(a), (iii)-(d), (iv)-(c)

    (d)

    (i)-(b), (ii)-(c), (iii)-(a), (iv)-(d)

  8. Fibrous root in ficus benghalensis develop from:

    (a)

    stem

    (b)

    node

    (c)

    internode

    (d)

    none of the above

  9. Plants grow on land is called ________.

    (a)

    Aquatic

    (b)

    Amphibian

    (c)

    Terrestrial

    (d)

    Both a & b

  10. Prop root is seen in __________.

    (a)

    Banyan

    (b)

    Mango

    (c)

    Neem

    (d)

    Coconut

  11. 5 x 2 = 10
  12. What is primary root?

  13. Write any two characteristic features of the stem.

  14. Explain about Terrestrial plants.

  15. Mention the modifications of Rhizome.

  16. What is meant by Liana?

  17. 5 x 3 = 15
  18. What are Stilt / Brace roots?

  19. How are buds classified?

  20. What is pulvinus?

  21. What is plant morphology? Explain the types of morphology.

  22. Tabulate terrestrial habitat with examples.

  23. 3 x 5 = 15
  24. What are the vital functions of root? Explain each function with suitable example.

  25. Compare the location, cellular types and the functions of different zones of root.

  26. How is the duration of leaf determined? Classify leaves according to duration.

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