Question on: SS3 Biology - Development Of New Seeds

Fertilization in flowering plants involves the fusion of male and female gametes to form a zygote. When a pollen grain reaches the stigma, it germinates and forms a pollen tube that grows down the style. The two sperm cells are released into the embryo sac through the pollen tube. One sperm cell fertilizes the egg cell, forming the zygote, while the other combines with the two polar nuclei to create the triploid endosperm, providing nourishment to the developing embryo.