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Published byJob Shaw Modified over 9 years ago
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The Flower What is the function of the flower for the plant?
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Reproduction of Flowering Plants
Accessory Flower Parts Sepals – leaflike, green structures that encircle the flower stem beneath the petals Petals – leaflike, colorful structures arranges in a circle called a corolla around the top of a flower stem
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Sepals and Petals
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Kinds of Flowers Complete – a flower that has all 4 organs (sepals, petals, stamens and pistils) Incomplete – a flower that lacks one or more organs Male – have stamens but no pistils Female – have pistils but no stamens
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Reproductive Flower Parts
Stamen (male) filament – the long structure that supports the anther anther – the structure at the tip of the filament that produces pollen containing sperm
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Stamen and Anther with Pollen
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POLLEN GRAINS A pollen grain is an immature male gametophyte.
Pollen grains are extremely durable; they have tough coats.
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B. Pistil (female) stigma – at the top of the pistil; a sticky or feathery surface on which the pollen grains land and grow style – the slender stalk of the pistil that connects the stigma to the ovary ovary – eventually becomes the fruit; contains the ovules ovules – will become seeds if they are fertilized
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The Female Pistil pistil
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Name the Reproductive Parts of this Flower
Name part A. anther Name part B. filament Parts A and B together are the stamen. Name part C. stigma Name part D. style Name part E. ovary Parts C, D, and E together are the pistil.
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Use the diagram on page 612 to draw a typical flower and label the accessory and reproductive parts.
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MONOCOT OR DICOT Count the petals or stamen
Monocots = flower parts in multiples of 3 Dicots = flower parts in multiples of 4 or 5
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Is this plant a monocot or a dicot? How do you know? 5 petals
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Is this plant a monocot or a dicot. How do you know
Is this plant a monocot or a dicot? How do you know? 3 petals, 3 sepals (or 6 tepals)
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