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Sexual Reproduction in Flowering Plants Test - 18

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Sexual Reproduction in Flowering Plants Test - 18
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  • Question 1
    1 / -0

    Flower is the site of

    Solution

    Sexual reproduction in flowering plants centres around the flower. Within a flower, there are usually structures that produce both male gametes and female gametes

  • Question 2
    1 / -0

    A flower was taken for study and the parts identified after observation were petals, sepals and stamens. What type of flower is it?

  • Question 3
    1 / -0

    Double fertilisation involves

  • Question 4
    1 / -0

    Pollen tube grows from the _____ and reaches till __________.

  • Question 5
    1 / -0

    In which part of angiosperms is filiform apparatus found?

  • Question 6
    1 / -0

    Which of the following plant contain unisexual flower

    Solution

    The flower which contains either male or female reproductive part is called unisexual flower. Papaya plant produce either male or female flower in separate plants.

  • Question 7
    1 / -0

    Hovering birds pollinate

  • Question 8
    1 / -0

    The Gynoecium of flower having two or more carpel fuse together are called

    Solution

    Gynoecium is the female reproductive part of flower. It consists of single or more than two carpel( pistil). When these carpels are fused together, they are called syncarpous.

  • Question 9
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    Which of the following is present in the centre of a flower?

  • Question 10
    1 / -0

    Female germ cells are situated in the

  • Question 11
    1 / -0

    The condition in which stamens are fused by their anthers and the filaments are free is called

  • Question 12
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    Which of the following statements are INCORRECT?

    1. Geitonogamy is the pollination of a flower by the pollen from another flower of the same plant.
    2. Interfascicular cambium is developed from the cells of medullary ray.
    3. Age of a tree can be estimated by diameter of its bark.
    4. Lenticels are involved in transpiration.

  • Question 13
    1 / -0

    Superior ovary is found in ____ flowers.

  • Question 14
    1 / -0

    Jack fruit is

  • Question 15
    1 / -0

    In some plants anther and stigma mature at same time this condition is called

    Solution

    Homogamy – In this case the anther and stigmas of a bisexual flower mature simultaneously. The pollen grains reach the mature stigma either by contact, wind, gravity, rain drop or even insects. Self pollination brought about by contact is called direct autogamy and remaining agencies perform indirect autogamy.

  • Question 16
    1 / -0

    During germination, a seedling develops from a/an

  • Question 17
    1 / -0

    Which of the following statements is/are false?

    a. Flowers that contain only one sex organ are called unisexual flowers. 
    b. A new seed of a plant is formed when the male gamete present in a pollen grain unites with a female gamete present in the ovule. 
    c. Each ovule contains many female gametes of a plant.

  • Question 18
    1 / -0

    Which of the following statements are FALSE?

    1. Double fertilisation is a characteristic of gymnosperms.
    2. Scattered vascular bundles are a characteristic feature of dicot stems.
    3. Pollination by snails is called malachophily.
    4. Apogamy is the formation of sporophyte directly from the gametophyte without gamete formation.

  • Question 19
    1 / -0

    Arrange the following in the correct sequence for sexual reproduction in a plant.

    P - Discharge of male gamete
    Q - Germination of pollen to form pollen tube
    R - Pollination
    S - Fertilisation

  • Question 20
    1 / -0

    The flower which possesses both androecium and gynoecium is called perfect or:-

    Solution

    Bisexual flower conation both male and female reproductive parts i.e. sepals and petals. These flowers are also called as monoecious or hermaphrodite

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