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प्रश्न
Answer the following question.
How does suitable pollination lead to fertilization?
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उत्तर
As the pollen of the right type is deposited on to the stigma of the flower of the same species, quite often it leads to germination of pollen grain as a result of a chemical cross-talk between the pollen and the carpel. Germination leads to the growth and extension of the pollen tube through the style of the flower to its ovary. The pollen tube carries the male gametes all the way to the ovule inside the ovary, leading to fertilization of male gamete with the female gamete inside the ovule.
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संबंधित प्रश्न
Name the parts A, B and C shown in the following diagram and state one function of each.
Mature ovary forms the ______.
Fill in the following blank with suitable word :
The.......... at the base of the carpel contains egg cells.
In what ways is fertilisation in a plant different from fertilisation in a human?
Fill in the blank by selecting suitable word:
A flower that bears both the male and the female parts is known as __________ flower.
Prepare a slogan for campaign against female foeticide.
Observe the figure below. Write functions of the labelled parts.
Generally, in a pollen tube, which of the following moves to the tip of the tube?
Gloriosa superba exhibits ______.
Which among the following statements are true for unisexual flowers?
- They possess both stamen and pistil
- They possess either stamen or pistil
- They exhibit cross pollination
- Unisexual flowers possessing only stamens cannot produce fruits
