Note on Pollination and Fertilization in Plants

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Pollination

The process of transfer of pollen grains from the anther to stigma of a same or different flower is called pollination.

Self-pollination: The pollination (the process of transfer of pollen grains) that occurs in the same flower is called self-pollination. This type of pollination only occurs in complete flower. No natural agents like air, water or insect is required for this process.

Cross-pollination: The pollination (the process of transfer of pollen grains) that occurs between two flowers is called cross-pollination. This occurs in both unisexual and bisexual flower. The external agents like the bee, air, other insects, water etc. are required.

Fertilization

Fertilization is the process of fusion of the female gamete, the ovum or egg and the male gamete produced in the pollen tube by the pollen grain. The reproductive part of the plant is the flower. It contains androecium as male reproductive part and gynoecium as female reproductive part. After maturity androecium, produce pollen grains as male gamete and gynoecium produce ovule as female gamete. After maturation of gamete, pollination takes place. The pollination may be self or cross. After pollination, the fusion of male and female gamete takes place. This process is called fertilization and a fertilized ovum is called zygote. The zygote then undergoes mitosis and form the embryo. The plant embryo is called seed. If seed encounters favorable environment it germinates to become a new plant.

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Difference between Fertilization and pollination

S.N Pollination fertilization
1. It is the process of transfer of pollen grains from the anther to the stigma of the flower. It is the process of fusion of male and female gamete.
2. It occurs before fertilization. It occurs after pollination.
3. It occurs only in plants. It occurs in both plants and animals.

  • The process of transfer of pollen grains from an anther to the stigma of a same or different flower is called pollination.
  • Fertilization is the process of fusion of the female gamete, the ovum or egg and the male gamete produced in the pollen tube by the pollen grain.
  • Flower contains androecium as male reproductive part and gynoecium as female reproductive part.
  • After maturation of gamete, pollination takes place.

 

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Very Short Questions

Pollination is the process of transfer of pollen grains from the anther to the stigma of a flower.

There are two types of pollination. They are self-pollination and cross-pollination.

The process of transfer of pollen grains from the anther to the stigma of another genetically identical flower of the same plant is called self-pollination.

The process of transfer of pollen grains from the anther of a flower of one plant to the stigma of the flower of another plant of same species is called cross-pollination.

Self-pollination is also called autogamy.

Cross-pollination is also called allogamy.

The difference between fertilization and pollination are:

S.N Pollination fertilization
1. It is the process of transfer of pollen grains from the anther to the stigma of a flower. It is the process of fusion of male and female gamete.
2. It occurs before fertilization. It occurs after pollination.
3. It occurs only in plants. It occurs in both plants and animals.

Fertilization is defined as the process of fusion of the female gamete, the ovum or egg and the male gamete produced in the pollen tube by the pollen grain.

The male reproductive part is androecium whereas female reproductive part is gynoecium.

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  • ______ is the process of fusion of male and female gamete.

    Zygote formation
    Fertilization
    Pollination
    Germination
  • The process of transfer of pollen grains from anther to stigma of a flower on another plant is called ______.

    Self- pollination


    Cross- pollination


    none of these


    both cross and self pollination


  • self pollination occurs in ______

    bisexual flower
    heterosexual flower
    unisexual flower
    incomplete flower
  • Pea plant is a ______

    heterosexual flower
    unisexual flower
    bisexual flower
    incomplete flower
  • Cross pollination occurs in ______

    all of the answers are correct
    Both bisexual flower and unisexual flower
    unisexual flower
    bisexual flower
  • Which pollinatiom occurs in mustard?

    neither polination
    both cross and self pollination
    cross polination
    self polination
  • Balsam plant has a ______

    bisexual flower
    unisexual flower
    incomplete flower
    heterosexual flower
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Shalin

How fertilization is possible in plants?


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