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Published byCassandra Carson Modified over 8 years ago
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Reproduction in seed plants
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Gymnosperm seeds are not enclosed by a protective fruit
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1. What structure produces pollen? 2. How is pollen transferred from the male to the female cone?
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Plants that produce flowers and fruits In your notebooks, list some angiosperms you’re familiar with.
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In gymnosperms, the cone is the reproductive structure. In angiosperms, the flower is the reproductive structure.
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1. What is the function of flowers? 2. What structures make up the male parts of a flower? 3. The female parts? 4. What purpose do the color and shape of the petals serve?
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On which of the bee’s structures can you observe pollen?
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GYMNOSPERM Oldest type of seed plant Seeds are NOT enclosed in a protective coating Needle-like leaves Produce cones for reproduction Deep roots Mostly trees ANGIOSPERM Most common type of seed plant Seeds are protected inside a fruit Produce flowers for reproduction Live almost everywhere on Earth
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Angiosperms and gymnosperms are wind pollinated but most angiosperms rely on birds, bats, and insects.
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Seeds are dispersed by: 1. Wind 2. Water 3. Animals
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Animals bury or hide fruits and seeds Animals eat fruits and seeds are not damaged when they pass through digestive tract
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Seeds inside dry fruits that have tiny hooks attach to animals or clothing
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Sketch a flower in your notebook and label the parts.
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Create a Venn diagram in your notebook. Label the sections Angiosperm, Gymnosperm and Both. Classify each characteristic in the correct category. ____ Seeds protected inside a fruit ____ Reproduces using seeds ____ Needle-like leaves ____ Produces cones for reproduction ____ Most common type of seed plant ____ Produces flowers for reproduction ____ Oldest type of seed plant ____ Contains leaves, stems, and roots ____ "naked seed" ____ “seeds in a little case” angio (little case) ____ Redwood and pine trees ____ Apple trees and roses ____ Uses photosynthesis to make food
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“stinking corpse lily” Foul odor attracts pollinators
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