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12th Standard Botany - Asexual and Sexual Reproduction in Plants English Medium Free Online Test One Mark Questions with Answer Key 2020 - 2021

12th Standard

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Botany

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

    Answer all the questions

    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. 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

  3. Which of the following represent megagametophyte?

    (a)

    Ovule

    (b)

    Embryosac

    (c)

    Nucellus

    (d)

    Endosperm

  4. Coelorhiza is found in ______.

    (a)

    Paddy

    (b)

    Bean

    (c)

    Pea

    (d)

    Tridax

  5. Which of the following aquatic plant is popularly known as the "Terror of Bengal"?

    (a)

    Eichomia crassipes

    (b)

    Vallisneria spiralis

    (c)

    Pistia stratiotes

    (d)

    Zostera marina

  6. Pick out the non-spermous seed

    (a)

    Wheat

    (b)

    Sunflower

    (c)

    Bean

    (d)

    Orchids

  7. The most common type of ovule noticed in dicots and monocots is

    (a)

    Orthotropous

    (b)

    Anatropous

    (c)

    Campylotropus

    (d)

    Amphitropous

  8. Statement 1: Primary sporogenous cell functions as megaspore mother cell.
    Statement 2: Megaspore mother cell undergoes mitotic division producing megaspores.

    (a)

    Statement 1 is correct and statement 2 is incorrect.

    (b)

    Statement 1 is incorrect and statement 2 is correct.

    (c)

    Both the statements 1 and 2 are correct.

    (d)

    Both the statements 1 and 2 are incorrect.

  9. Identify the mismatched pair:

    (a)

    Epidermal layer - Protective infunction

    (b)

    Eridothecium layer - Helps in dehiscence of anther

    (c)

    Middle layer - Persistent layer

    (d)

    Tapetum - Nutritive in function

  10. Assertion (A): Epidermis is protective in function.
    Reason (R): Epidermis is outermost unilayer of another wall.

    (a)

    A is correct R is incorrect.

    (b)

    R explains A.

    (c)

    Both A and R are incorrect.

    (d)

    Both A and R are correct. R does not explain A.

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