Tag: flower and pollination

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Questions Related to flower and pollination

Multiple choice flower and fruit flower: parts of a flower flower and pollination flower to flower

Anthers dehisce longitudinally towards the side of carpels. The condition is

  1. Introrse

  2. Extrorse

  3. Innate

  4. Centripetal
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The anthers of stamens can be found facing the centre or the periphery of the flowers. When the anthers face the centre or the gynoecium and dehisce longitudinally while facing the carpel or gynoecium, the condition is called introrse. When the anthers face the periphery or the petals and dehisce away from the carpel, the condition is called extrorse.

Hence, the correct answer is 'Introrse'

Multiple choice botany flower to flower importance of pollination flower: parts of a flower flower and pollination

Match column I with column II and select the correct option from the given codes.

Column I Column II
A. Tallest flower (i) Maize
B. Pronuba moth (ii) Amorphophallus
C. Anemophily (iii) Salvia
D. Entomophily (iv) Yucca

  1. A-(ii), B-(iv), C-(i), D-(iii)

  2. A-(ii), B-(iv), C-(iii), D-(i)

  3. A-(iii), B-(ii), C-(i), D-(iv)

  4. A-(iv), B-(iii), C-(ii), D-(i)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The tallest flower is amorphophallus which is commonly known as Rafflesia flower. It is known to be the largest flower in the world.

Pronuba moth and the plant Yucca have an interdependent relationship regarding the pollination. These are codependent on each other.
Entomophilous flowers are those kinds where pollination is done with the help of insects. The flower that are entomophilous are usually bright in colour to attract the insects. An example is salvia.
Anemophilous flowers are the one ones where the pollination takes place by the wind. The pollen grains are very light and the stigma is sticky and feathery so that they can catch the pollen grains. In maize, the pollination is anemophilous.
So, the correct option is 'A-(ii), B-(iv), C-(i), D-(iii)'

Multiple choice botany flower to flower importance of pollination flower: parts of a flower flower and pollination

Which of the following options is correct?

  1. Transfer of pollen grains from the anther to the stigma of the same flower-Autogamy

  2. Transfer of pollen grains from the anther of one flower to the stigma of another flower of same plant- Geitonogamy

  3. Transfer of pollen grains from the anther to the stigma of a genetically different plant of same species- Xenogamy

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Autogamy is the transfer of pollen grains from the anther to the stigma of the same flower and genetically same type of pollens are brought to the stigma.
Pollination between two flowers of the same plant is called Geitonogamy. Xenogamy is the transfer of pollen grains from the anther to the stigma of a different flower of a different plant. Therefore, genetically different pollen grains are brought to the stigma.
So, the correct option is 'All of these'. 

Multiple choice botany the flower importance of pollination flower: parts of a flower flower and pollination

Pollination characteristically occurs in?

  1. Angiosperms only

  2. Pteridophytes, Angiosperms

  3. Gymnosperms, Angiosperms

  4. Bryophytes, Pteridophytes, Gymnosperms, Angiosperms
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Pollination is the transfer of pollen from an anther to a stigma, a process characteristic of seed-producing plants, which include both Gymnosperms and Angiosperms. Bryophytes and Pteridophytes rely on water for fertilization rather than pollination via pollen grains.

Multiple choice botany the flower importance of pollination flower: parts of a flower flower and pollination

Pollination by bat is called ______________.

  1. Ornithophily

  2. Chiropterophily

  3. Malacophily

  4. Anemophily
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

  • Ornithophily means bird pollination,  is the pollination of flowering plants by birds.
  • Pollination done by Bats is known as chiropterophily. Various fruits are dependent on bats for pollination, such as mangoes, guavas, and banana. Bat pollination is an essential process in tropical communities with 500 tropical plant species. They are completely, or partially, dependent on bats for pollination.
  • Malacophily refers to pollination by snails.
  • Anemophily or wind pollination refers to a form of pollination whereby pollen is distributed by wind.

So, The correct answer is option B

Multiple choice botany flower to flower importance of pollination flower: parts of a flower flower and pollination

The transfer of pollens from anther to stigma of the same flower is called as

  1. Cross pollination

  2. Self-fertilization

  3. Cross breeding

  4. Hybridization
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When a pollen grain from a stamen is transferred to the stigma of the same plant, it is called self-pollination. It mainly occurs in bisexual flowers.

So, the correct option is 'Self-fertilization'. 

Multiple choice botany flower to flower importance of pollination flower: parts of a flower flower and pollination

In a flower, the male and female reproductive parts are ............. respectively.

  1. Stamen and pistil

  2. Pistil and stamen

  3. Petals and pistil

  4. Stamen and petals
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Stamen and pistil are the male and female reproductive parts respectively.  Stamen has anther that produce pollen grains and stalk known as the filament. Pistil has stigma, style and ovary. The ovary contains egg-producing structures the ovules, the style, a hollow tube that receives the pollen tube and stigma that provides a platform for the pollen grains to land and germinate.
So, the correct answer is 'Stamen and pistil'.