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Sexual Reproduction in Flowering Plants
a) Flower Structure & Gamete Formation
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Learning objectives(1/4)
State the structure & function of the floral parts including: Sepal, petal, stamen, carpel) State that the Pollen grain produces male gamete. State that the Embryo sac produces an egg cell & polar nuclei.
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Structure of the flower
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Structure of the flower
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Structure of the flower
Anther Filament Stamen Stigma Style Ovary Ovule Sepal Petal Carpel
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Function of floral parts
Sepal : To protect the flower (and to prevent it from drying out Petals : To attract insects to the flower for pollination
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Function of floral parts
Stamen : To produce the pollen grains in the anthers. (Each pollen grain produces two male gametes, one of which can fertilise an egg cell)
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Function of floral parts -Stamen
Anther Produces pollen Filament Holds the anther in place
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Function of floral parts
Carpel : To produce the ovules (Each ovule contains an egg cell inside an embryo sac)
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Function of floral parts - Carpel
Stigma Where pollen lands after pollination Style Pollen travels down this Ovary Contains ovules &eggs)
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Click below to go to the next stage in the life cycle
Pollination & Fertilisation
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Thanks to PDST biology team
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