Tag: botany

Quizzes (264) Questions (5276)

Questions Related to botany

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

Chasmogamy is pollination in.

  1. Bud condition

  2. Closed flowers

  3. Open flowers

  4. Unrelated flowers
Reveal answer Fill a bubble to check yourself
C Correct answer
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.