By: Laura, Brittany, Ryone
Basic Sexual Reproduction
Green Algae Sexual Reproduction
Bryophytes Sexual Reproduction
Seedless Vascular Plant Sexual Reproduction
Seed Plant Sexual Reproduction
Angiosperm: Sperm is produced in a pollen grain (male gametophyte) which is carried to the female reproductive structure by wind or animals. Pollination is what the transfer of pollen from the male reproductive structure to the female reproductive structure. A zygote is produced during fertilization inside a seed and is surrounded by the seed coat (layer that protects and surrounds embryo). When the conditions are right the embryo begins to grow again till it forms a mature plant.
Gymnosperms: Pollen cones (male) release pollen grains which travel in the wind till they reach a seed cone (female). The pollen grains are caught in a sticky section of the seed cone and is pulled inside the cone to the ovule (where the female gametophytes develop). The pollen grain splits open and creates a pollen tube (contains two haploid sperm cells). The sperm cells reaches the female gametophyte and one fertilizes an egg which produces a zygote. The zygote (embryo) grows into a sporophyte plant which is then encased to form a ready to be scattered seed.