Plant Reproduction
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8 Terms
microsporangia (2n)
produce microspores (1n) thru meiosis
microspores
develops into pollen grains (male gametophytes 1n) thru mitosis
Pollen grains
divide by mitosis to form 2 sperm cells
embryo
2n, the young shoot that will develop into the adult plant
embryo sac
female gametophyte within ovule of angiosperms
embryo sac formation
- Within each ovule, a diploid microspore mother cell undergoes meiosis to produce 4 haploid megaspores
- Usually only 1 megaspore survives, enlarges and undergoes repeated mitotic divisions to produce 8 haploid nuclei
- Enclosed within embryo sac
double fertilization
One sperm fertilizes egg, another forms endosperm.
endosperm (3n)
nutrient-rich tissue formed by union of a sperm with two polar nuclei during double fertilization.
provides food to developing embryo in seeds.
Note 
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