Lifecycle of Land Plants

1
Lifecycle of Land Plants
Alternation of Generations
2
Lifecycle of Land Plants
Alternation of Generations
3
Lifecycle of Land Plants
Alternation of Generations
4
Angiosperm lifecycle
5
Angiosperm lifecycle
Meiosis I
Meiosis II
Developing male gametophyte
Mature male gametophyte with two gametes
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Angiosperm lifecycle
Megasporogenesis
Meiosis I
Meiosis II
Disintegration of 3 megaspores
Developing female gametophyte
Double fertilization one sperm combines with
egg, the other sperm combines with two polar
nuclei to form triploid endosperm.
Mature female gametophyte with one egg, two polar
nuclei, and five non-functional nuclei.
7
Angiosperm lifecycle