Question

explain the sexual mode of reproduction in plants​

Answer 1

Sexual reproduction in floweringplants involves the production of male and female gametes, the transfer of the male gametes to the female ovules in a process called pollination. After pollination occurs, fertilization happens and the ovules grow into seeds within a fruit.




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Answer 2

Sexual reproduction in plants:

Plants reproduce sexually by producing male gametes in the form of pollen and the female gametes in the form of eggs.

Flower:

It is the main reproductive structure of a plant. A flower comprises sepals, petals, stamens and carpels.

- Stamens and carpels are the reproductive parts of a flower comprising germ cells.

 

- A unisexual flower contains either stamens or carpels. For example, papaya and watermelon are unisexual flowers.

-A bisexual flower contains stamens as well as carpels. For example, hibiscus and mustard flowers are bisexual.

   

The stamen is the male reproductive organ that consists of filament and anther. The anther produces male gametes in the form of pollen grains.

The carpel is the female reproductive organ located at the centre of a flower. It consists of the ovary, style and stigma.

The ovary is the swollen part at the bottom of the carpel. Ovary contains the female gametes in the form of eggs or ovules.

Pollination:

This is the transfer of pollen grains from the anther to the stigma of the n.

 two types cross pollination and self pollination

Fertilisation:

This involves the fusion of male germ cell with the female germ cell resulting in the formation of a single cell, the zygote.

There occur many changes after fertilisation.  After fertilisation, the zygote divides repeatedly to form an embryo which resides inside the seed.

      • The ovule develops into a seed.

      • The ovary ripens to form a fruit.

      • Seed inside the fruit encloses the embryo, the future plant.