How does fertilization take place in a flower?

Answer 1

the pollen grain lands ot the tip of pistle called as stigma and then pollen tube from pollen grain germinates and it reaches the ovary through style(containing 2 male gamets).. then fertilisation takes place...

or is when the male sex cells inside the pollen grains fuses with the female sex cells inside to produce a seed embryo

Pollination transfers the pollen grain to the stigma. However, for hertilisation to take place, the nucleus of the pollen grain must fuse with the nucleus of the ovum, which is inside an ovule in the ovary. To transfer the nucleus to the ovum, the pollen grain grows a tube, which digest its way through the tissue of the style and into the ovary. Here it grows around the opening in an ovule. The tip of the tube dissolves and allows the pollen grain nucleus to move out of the tube and into the ovule. Here it fertilises the ovum (egg cell) nucleus.

Answer 2

the pollen grains after landing on the stigma germinate to send out pollen tubes through which the male gametes reach near the egg cell of embryo sac in the ovule to fuse with. this fusion of male and female gametes (egg cell) is called fertilization.

Answer 3

The fertilization in flowering plants is achieved through pollen tube. The pollen germination is prompted by stigmatic cells, style cells facilitate the growth of pollen tube and male gametes travel along this pollen tube to reach the embryo sac to fertilize the egg cell. Another male gamete fuses with polar nuclei to perform tripple fusion. This fertilization in flowering plant is called double fertilization.