Flower reproduction
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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.

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Flower reproduction
Flower Reproduction

Structure Meets Function

How do perfect flowers avoid self-pollination?


Students will be able to
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.


Sexual reproduction
Sexual Reproduction

  • The process that allows the union of gametes from two different individuals.


Major cellular processes
Major cellular processes

  • Meiosis: Cell division which produces haploid (1N cells)

    N=number of chromosomes

  • Fertilization: Union of gametes to produce a zygote (2N)


Why sex
Why sex?

  • Mutation is the ultimate source of genetic variation.

  • Sex shuffles up combinations of mutations!




Lab activity
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?


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