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11th Standard Botany - Secondary Growth English Medium Free Online Test One Mark Questions with Answer Key 2020 - 2021

11th Standard

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Botany

Time : 00:10:00 Hrs
Total Marks : 10

    Answer all the questions

    10 x 1 = 10
  1. Usually, the monocotyledons do not increase their girth, because

    (a)

    They possess actively dividing cambium

    (b)

    They do not possess actively dividing cambium

    (c)

    Ceases activity of cambium

    (d)

    All are correct

  2. The common bottle cork is a product of

    (a)

    Dermatogen

    (b)

    Phellogen

    (c)

    Xylem

    (d)

    Vascular cambium

  3. The wood formed in spring season in called ____________

    (a)

    Hard wood

    (b)

    Soft wood

    (c)

    Early wood

    (d)

    Non porous wood

  4. Match the following.

    (a) Phellum i. Cork cambium
    (b) Phellogen ii. Secondary cortex
    (c) Phelloderm iii. Cork
    (d) Phelloids iv. lack suberin
    (a)
    a b c d
    iii ii iv i
    (b)
    a b c d
    iii i ii iv
    (c)
    a b c d
    ii i iii iv
    (d)
    a b c d
    i ii iii iv
  5. Choose the wrong statement.

    (a)

    Intrafascicular cambium originates from procambium.

    (b)

    It is a part of primary meristem.

    (c)

    Interfascicular cambium is present inside the vasular bundle

    (d)

    It is a part of secondary meristem

  6. Canada balsam is obtained from

    (a)

    Abies

    (b)

    Haematoxylin

    (c)

    Quercus

    (d)

    Cinchona

  7. Bark does not include ____________

    (a)

    cortex

    (b)

    periderm

    (c)

    pith

    (d)

    secondary phloem

  8. In dicot root, periderm originates from  ____________

    (a)

    cortex

    (b)

    pericycle

    (c)

    xylem

    (d)

    medullary rays

  9. Which of the following is a part of Radial system.

    (a)

    sieve tubes

    (b)

    companion cells

    (c)

    phloem rays

    (d)

    phloem parenchyma

  10. Assertion (A) : Heart wood is the dead part of wood.
    Reason (R) : It resists microerganisims

    (a)

    A and R are wrong

    (b)

    A and R are coirect hut R is not the explanation for A

    (c)

    A is right, R is wrong

    (d)

    R explains A.

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