flower reproduction
DESCRIPTION
Flower Reproduction. Structure Meets Function How do perfect flowers avoid self-pollination?. Students will be able to:. Recognize the processes that allow organisms to reproduce sexually. Identify the role of a flower in plant sexual reproduction. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Flower Reproduction](https://reader035.vdocuments.net/reader035/viewer/2022062301/56816108550346895dd0515d/html5/thumbnails/1.jpg)
Structure Meets Function
How do perfect flowers avoid self-pollination?
FLOWER REPRODUCTION
![Page 2: Flower Reproduction](https://reader035.vdocuments.net/reader035/viewer/2022062301/56816108550346895dd0515d/html5/thumbnails/2.jpg)
Students will be able to:• Recognize the processes that allow organisms to reproduce sexually.• Identify the role of a flower in plant sexual reproduction.• Explain the mechanisms flowers have to avoid self-pollination.
![Page 3: Flower Reproduction](https://reader035.vdocuments.net/reader035/viewer/2022062301/56816108550346895dd0515d/html5/thumbnails/3.jpg)
Sexual Reproduction• The process that allows the union of gametes from two different individuals.
![Page 4: Flower Reproduction](https://reader035.vdocuments.net/reader035/viewer/2022062301/56816108550346895dd0515d/html5/thumbnails/4.jpg)
Major cellular processes
•Meiosis: Cell division which produces haploid (1N cells)N=number of chromosomes
• Fertilization: Union of gametes to produce a zygote (2N)
![Page 5: Flower Reproduction](https://reader035.vdocuments.net/reader035/viewer/2022062301/56816108550346895dd0515d/html5/thumbnails/5.jpg)
Why sex?• Mutation is the ultimate source of genetic variation.
• Sex shuffles up combinations of mutations!
![Page 6: Flower Reproduction](https://reader035.vdocuments.net/reader035/viewer/2022062301/56816108550346895dd0515d/html5/thumbnails/6.jpg)
Flowers aid in sexual reproduction
![Page 7: Flower Reproduction](https://reader035.vdocuments.net/reader035/viewer/2022062301/56816108550346895dd0515d/html5/thumbnails/7.jpg)
Fertilization in a flower
![Page 8: Flower Reproduction](https://reader035.vdocuments.net/reader035/viewer/2022062301/56816108550346895dd0515d/html5/thumbnails/8.jpg)
Lab Activity• How does a plant avoid self-pollination?
• You will observe the structure of a perfect flower.
• You will analyze how the structure allows for the function of cross-pollination (avoiding self-pollination).
Questions to ponder:
• Does timing prevent self-fertilization?• Do the male and female structures prevent accidental self-
fertilizaiton?