Question

Reproduction in plants: why are some plant parts like potato, onion swollen – are they of any use to the plants? what is the function of flowers? how are fruits and seeds formed? how are they dispersed? - vegetative, asexual and sexual reproduction in plants, pollination - cross, self pollination; pollinators, fertilisation, fruit, seed.

Answer 1

The swollen parts of the potato and onion are tuber and bulb respectively which helps in storage of food . The potato have nodes or eyes from where the stem originates and then they are buried in the soil to germinate to a sapling .

Fruits are formed when ovary matures and the matured seeds are called ovules . The ovary develops into fruit .

Dispersion is the process through which seeds can be taken to different places by the help of water , wind and animals . Ex - cotton seeds , coconut .

The transfer of pollen grains from anther to the stigma of a flower is called pollination . Pollination are of two types
Cross and self pollination

Cross pollination occurs when transfer takes place from one plant to other plant while self pollination occurs when transfer takes place in the same plant .

Pollinators are those organism which contribute in pollination . Ex- honeybee , bees , butterflies


Fertilisation is the action of fertilising an egg or a female animal or plant involving fusion of male and female gamete to produce zygote .

Then the zygote develops into embryo .

Hope it helps
Thanks !