Tag: botany

Questions Related to botany

Which of the following options is correct?

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

  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

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Correct Option: D
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'. 

Pollination characteristically occurs in?

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

  1. Angiosperms only

  2. Pteridophytes, Angiosperms

  3. Gymnosperms, Angiosperms

  4. Bryophytes, Pteridophytes, Gymnosperms, Angiosperms

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Correct Option: A

Pollen kitt is present in

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

  1. Anemophilly

  2. Entamophily

  3. Malacophilly

  4. Zoophilly

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Correct Option: B

A long, leafless, flowering stem arising directly from a bulb like in onion, is called?

botany reproduction in angiospermic plants importance of pollination flower: parts of a flower flower and pollination

  1. Scape

  2. Bulbil

  3. Turion

  4. Liana

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Correct Option: A

Pollination by bat is called ______________.

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

  1. Ornithophily

  2. Chiropterophily

  3. Malacophily

  4. Anemophily

Show answer
Correct Option: B
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

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

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

  1. Cross pollination

  2. Self-fertilization

  3. Cross breeding

  4. Hybridization

Show answer
Correct Option: B
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'. 

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

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

  1. Stamen and pistil

  2. Pistil and stamen

  3. Petals and pistil

  4. Stamen and petals

Show answer
Correct Option: A
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'.

Chasmogamy is pollination in.

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

  1. Bud condition

  2. Closed flowers

  3. Open flowers

  4. Unrelated flowers

Show answer
Correct Option: C
Explanation:

Chasmogamy is a plant with a reproductive mechanism in which pollination occurs in chasmogamous flowers. Chasmogamous flowers are showy with open petals and encircling exposed reproductive parts.  Chasmogamous stems from Greek for an open marriage. These are named after the open arrangement of floral structures. 

Once chasmogamous flowers have reached maturity, they unfurl and their stamens and/or style are made available for pollinations correct answer is Chasmogamy, is pollination in open flower.

Thus the correct answer is C.

Intraspecific incompatibility is overcome by.

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

  1. Mixed pollination

  2. Self pollination

  3. Wetting pollination

  4. Wetting of stigmas

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Correct Option: A

Which one of the following plants is pollinated by bat?

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

  1. Bombax ceiba

  2. calotropis procera

  3. Mucuna gigantean

  4. Nicotiana glauca

Show answer
Correct Option: A