Pollination is prerequisite for fertilization in plants.

(1) Fertilization is fusion of male and female gametes.

(2) Pollination is transfer of pollen grains which carry non-motile male gametes.

(3) Pollen grains are transferred from anther to stigma of flower where they germinate.

(4) Both male and female gametes are non- motile and they are produced at two different sites.

(5) Therefore the pollination process is necessary for act of fertilization in plants.