Copyright © 2009 Pearson Education, Inc. REPRODUCTION OF FLOWERING PLANTS.
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Transcript of Copyright © 2009 Pearson Education, Inc. REPRODUCTION OF FLOWERING PLANTS.
![Page 1: Copyright © 2009 Pearson Education, Inc. REPRODUCTION OF FLOWERING PLANTS.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649ee85503460f94bf9c6b/html5/thumbnails/1.jpg)
Copyright © 2009 Pearson Education, Inc.
REPRODUCTION OF FLOWERING PLANTS
![Page 2: Copyright © 2009 Pearson Education, Inc. REPRODUCTION OF FLOWERING PLANTS.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649ee85503460f94bf9c6b/html5/thumbnails/2.jpg)
The flower is the organ of sexual reproduction in angiosperms
– Sepals—enclose and protect flower bud
– Petals—showy; attract pollinators
– Stamens—male reproductive structures
– Carpels—female reproductive structures
![Page 3: Copyright © 2009 Pearson Education, Inc. REPRODUCTION OF FLOWERING PLANTS.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649ee85503460f94bf9c6b/html5/thumbnails/3.jpg)
A stamen has two parts
– Anther—produces pollen, which house cells which develop into sperm
– Filament—elevates anther
A carpel has three parts
– Stigma—site of pollination
– Style—“neck” that leads to ovary
– Ovary—houses ovules, which contain developing egg
The flower is the organ of sexual reproduction in angiosperms
![Page 4: Copyright © 2009 Pearson Education, Inc. REPRODUCTION OF FLOWERING PLANTS.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649ee85503460f94bf9c6b/html5/thumbnails/4.jpg)
Copyright © 2009 Pearson Education, Inc.
The development of pollen and ovules culminates in fertilization
Pollination
– Transfer of pollen from anther to stigma
– Pollen is carried by wind, water, and animals
![Page 5: Copyright © 2009 Pearson Education, Inc. REPRODUCTION OF FLOWERING PLANTS.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649ee85503460f94bf9c6b/html5/thumbnails/5.jpg)
Angiosperm life cycle overview
– Fertilization occurs in the ovule; the fertilized egg develops into an embryo encased in a seed
– The ovary develops into a fruit, which protects the seed and aids in dispersal
– The seed germinates under suitable conditions to produce a seedling, which grows into a mature plant
The flower is the organ of sexual reproduction in angiosperms
![Page 6: Copyright © 2009 Pearson Education, Inc. REPRODUCTION OF FLOWERING PLANTS.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649ee85503460f94bf9c6b/html5/thumbnails/6.jpg)
Ovary, containingovule
Mature plant withflowers, wherefertilization occurs
![Page 7: Copyright © 2009 Pearson Education, Inc. REPRODUCTION OF FLOWERING PLANTS.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649ee85503460f94bf9c6b/html5/thumbnails/7.jpg)
Ovary, containingovule
Mature plant withflowers, wherefertilization occurs
Fruit (mature ovary),containing seed
Embryo
Seed
![Page 8: Copyright © 2009 Pearson Education, Inc. REPRODUCTION OF FLOWERING PLANTS.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649ee85503460f94bf9c6b/html5/thumbnails/8.jpg)
Ovary, containingovule
Mature plant withflowers, wherefertilization occurs
Fruit (mature ovary),containing seed
Embryo
Seed
Germinatingseed
![Page 9: Copyright © 2009 Pearson Education, Inc. REPRODUCTION OF FLOWERING PLANTS.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649ee85503460f94bf9c6b/html5/thumbnails/9.jpg)
Ovary, containingovule
Mature plant withflowers, wherefertilization occurs
Fruit (mature ovary),containing seed
Embryo
Seed
Germinatingseed
Seedling
![Page 10: Copyright © 2009 Pearson Education, Inc. REPRODUCTION OF FLOWERING PLANTS.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649ee85503460f94bf9c6b/html5/thumbnails/10.jpg)
Cotyledon
Cotyledon
Cotyledon
Foliage leaves
Seedcoat