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Reproduction in Flowering Plants

Reproduction in Flowering Plants. What is the function of flowers?. Angiosperm: a plant having its seeds enclosed in an ovary; a flowering plant. The Flower:. The Flower. Is the reproductive unit of some plants (angiosperms)

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Reproduction in Flowering Plants

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  1. Reproduction in Flowering Plants What is the function of flowers?

  2. Angiosperm: a plant having its seeds enclosed in an ovary; a flowering plant

  3. The Flower:

  4. The Flower Is the reproductive unit of some plants (angiosperms) Parts include petals, sepals, and or more carpels (the reproductive organs), and stamens (male reproductive organs)

  5. Carpel: a simple pistil • Ovary: the enlarged lower part of the pistil in angiosperms, encloses the ovules • Ovules: the female reproductive cells – eggs The Female Reproductive Organs

  6. Style: a tube on top of the ovary which presents the stigma • Stigma: receives the pollen during fertilization The Female Reproductive Organs

  7. Stamen: the male reproductive parts of a flower Consists of Two Parts: Anther: produces pollen Filament: the stalk-like portion of a stamen, supporting the anther The Male Reproductive Organs

  8. Pollen consists of the male reproductive cells which fertilize ovules • Pollen must fertilize an ovule to produce a seed Fertilization- Pollination

  9. Bees fly from flower to flower collecting sweet nectar • They spread pollen – depositing on some stigmas • After the male’s pollen grains land on stigma fertilization begins, pollen tubes develop with in the style • The pollen burrows down into the ovary • The sperm fertilizes an ovum in the ovule • After fertilization the ovule develops into a seed in the ovary Fertilization Process

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