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Parts of a Flower and Their Functions

Learn about the different parts of a flower, including sepals, petals, stamen, pistil, and receptacle. Understand the process of pollination and fertilization. Ideal for students studying botany.

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Parts of a Flower and Their Functions

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  1. The Parts of a FlowerThis lesson is from Virginia Tech and has not been edited by the Georgia Curriculum Office.

  2. Parts of a Flower • Sepal • Petals • Stamen • Pistil • Receptacle *See Handout 1

  3. Sepal • Green, leaf-like structure • Fold back when flower opens • Collectively called the calyx

  4. Petals • Inside the sepals • Leaf-like • Colorful • Attractant for pollinators

  5. Stamen • Male reproductive parts • Consists of a filament & anther • Produces pollen • Pollen contains male sex cell

  6. Pistil • Female reproductive part • 3 main parts • Stigma • Style • Ovary

  7. Receptacle • Swollen portion of the stem • Flower parts are attached

  8. Pollination • Pollen transferred from anther to stigma • Transfer take place via • Animals • Wind *See Handout 2

  9. Fertilization • Pollen fuses with the egg • Forms a new plant • Self-pollination • Cross-pollination

  10. Cross-Pollination • Used to develop new cultivars • Occurs between closely related plants

  11. Review • Flowers have 5 main parts • Sepals, Petals, Stamen, Pistil, & Receptacle • Stamen is the male part • Pistil is the female part • Fertilization is where the pollen fuses with the egg • Cross-pollination occurs between two different plants

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