Self Studies
Self Studies
Self Studies
Self Studies

Sexual Reproduction in Flowering Plants Test - 62

Result Self Studies

Sexual Reproduction in Flowering Plants Test - 62
  • Score

    -

    out of -
  • Rank

    -

    out of -
TIME Taken - -
Self Studies

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Self Studies Self Studies
Weekly Quiz Competition
  • Question 1
    1 / -0
    In which one of the following pollination is autogamous?
    Solution
    Correct Option: D
    Explanation:

    • Autogamy is a type of self-pollination wherein pollen grains from anther of flower are transferred to the stigma of same flower. Geitonogamy refers to pollination of pollen from anther of one flower to stigma of another flower, borne on the same plant, it is a type of self-pollination between genetically similar but physically different flowers. This makes option A incorrect. 
    • Geitonogamy is type of cross-pollination wherein pollens from one plant are transferred to stigma of flower borne on different plant of same species. This makes option B incorrect. 
    • Flowers that open at maturity to facilitate exposure of pollen and stigma for cross-pollination are referred to as chasmogamous flower, they are large, conspicuous colourful flowers with nectar/scent to attract pollinators. This makes option C incorrect. 
    • Flowers that remain close to avoid cross-pollination and exhibit modifications to facilitate self-pollination are referred to as cleistogamous flowers. Thus, cleistogamous flowers are those that do not open at all and only autogamy occurs.
    • Therefore, the correct answer is option D.
  • Question 2
    1 / -0
    The male reproductive organs in plants are
    Solution
    The stamen is the pollen producing (male) reproductive organ of a flower.
    A sepal is the part of the flower which provides protection to flower in bud.
    Petals are modified leaves that surround the reproductive parts of flowers.
    Carpel is the structure of pistil, which is female reproductive organ of flower.
    So, the correct answer is option B.
  • Question 3
    1 / -0
    After culturing the anther of a plant, a few diploid plants were got along with haploid plants. Which of the following parts might have given rise to diploid plants?
    Solution
    When the anther is used as the explant material for the cultivation of new plants by the tissue culture technique, then there are some plants which are developed as haploid and the other plants are developed as the diploid plants. There are different types of tissues which are present in the anther. The pollen grains and the respective cells like the vegetative cell and generative cell will give rise to the plants which are haploid because they are formed through spermatogenesis. The other cells like the cells of anther wall, endothecium, middle layers are diploid in nature and give rise to diploid plants.
    Thus, the correct answer is option B. 
  • Question 4
    1 / -0
    Entomophily is pollination by
    Solution
    • Pollination is the transfer of pollen from the male anther to the female stigma. It is carried out with the help of animals, birds, insects, water, wind, etc. 
    • The pollination carried out by insects is called entomophily. 
    • Pollination carried out by water is called hydrophily. Pollination carried out by the wind is called anemophily.
    •  Pollination carried out by the animals is called zoophily. 

    So, the correct answer is option D.
  • Question 5
    1 / -0
    Pollination is best defined as?
    Solution
    Pollination can be best defined as the transfer of pollen from the male anther of a flower to the female stigma to produce new offspring. It is carried out by various means like birds, water, wind etc. It helps in fertilization and also creates variation.

  • Question 6
    1 / -0
    When pollen of a flower is transferred to the stigma of another flower of the same plant the pollination is referred to as
    Solution
    In the fertilization process, the pollen grain from one flower transfers to the stigma of another flower of the same plant, the process of pollination is called as 'Geitonogamy.'
  • Question 7
    1 / -0
    Insect pollinated flowers usually possess
    Solution
    Insect-pollinated flowers usually possess sticky and heavy pollens with a rough surface that allow them to stick to insects easily. Flowers also have sweet nectar that attracts insects that go from flower to flower to pollinate the flowers. The pollen grains are also in small quantities, because it is very likely that insects will enter another flower, and the pollen grains would have a higher chance of landing on the stigma. That's why there is no need of pollen grains in large quantities. 


  • Question 8
    1 / -0
    Pollination is a characteristic of
    Solution
    Pollination is the characteristics of flowering plants i.e., angiosperms. After the pollen tube reaches the ovary, the process of double fertilization occurs in the angiosperms. One of the male gamete fuses with the egg cell (syngamy) which results in the formation of zygote. The second male gamete fuses with two polar nuclei to form a triploid, primary endosperm nucleus (PEN). This is called triple fusion. Since two fusion syngamy and triple fusion take place in an embryo sac, it is called double fertilisation. Central cell and PEN develops into the endosperm and zygote develops into the embryo.
    So, the correct answer is option A.
  • Question 9
    1 / -0
    In same flowers, the stamens and pistil reach maturity at the same time. It is known as
    Solution
    1. Porogamy is the process of entry of pollen tube through micropyle end as in lily.
    2. Mesogamy is the entry of pollen tube via integuments seen in Cucurbita.
    3. When pollen tube develops to make entry of pollen grains into eggs is the process called siphonogamy.
    4. Homogamy is the method in which stamens and pistils of the same flower reach maturity at the same time to execute autogamy.
    So the correct option is "Homogamy".
  • Question 10
    1 / -0
    Pollination by bats is called as
    Solution
    Pollination is the transfer of pollens from the male anther to the female stigma. It is carried out by the help of animals, birds, insects, water and wind. Pollination carried out by bats is called chiropterophily. The pollination carried out by the birds is called ornithophily. The pollination carried out by snails is called malacophily. The pollination carried out by insects is called entomophily.
Self Studies
User
Question Analysis

  • Correct -

  • Wrong -

  • Skipped -

My Perfomance
  • Score

    -

    out of -
  • Rank

    -

    out of -
Re-Attempt Weekly Quiz Competition
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now