Sexual reproduction is the result of the male and female gametophytic cells fusing to form a zygote.
Pollen germinates of the female stigma and the male gametes move down the pollen tube through the female style.
The pollen tube enters the embryo sac through the micropyle in the ovule to release the male gametes.
The photomicrograph to the right is an unopen female flower of wild cucumber.
It has an inferior ovary that forms under the petals.
Sexual reproduction is the result of the male and female gametophytic cells fusing to form a zygote.
Illustrated here is one example of an angiosperm ovule.
It contains three antipodal cells, two polar nuclei, two synergids, and an egg cell.
Embryo sac
Female flower sexual parts.
Male gametes move along the pollen tube. The tube nucleus guides the pollen tube into the female embryo sac.
The generative nuclei are the male gametes that will fuse with the female nuclei in the embryo sac.
The pollen tube enters through the micropyle to deposit the sperm cells.
Angiosperms undergo double fertilization where one sperm generative nucleus fuses with the egg nucleus to form the zygote and the other generative nucleus fuses with two polar nuclei to form the triploid endosperm.
