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Chapter 2 Lesson 1

Vascular Plants. Chapter 2 Lesson 1. Vascular Plants. What are vascular plants?. Plants that have specialized cells and tissues that form passageways The passageways transport water, food and waste around the plant. Root system Shoot System Seeds. Root System. Usually found underground

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Chapter 2 Lesson 1

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  1. Vascular Plants Chapter 2 Lesson 1 Vascular Plants

  2. What are vascular plants? • Plants that have specialized cells and tissues that form passageways • The passageways transport water, food and waste around the plant. • Root system • Shoot System • Seeds

  3. Root System • Usually found underground • Function: anchoring and absorbing • Anchoring: holds plant in place • Absorbing: takes in nutrients and water from the soil

  4. Shoot System • Stems and leaves • Usually above the ground • Functions: support plant, transport materials, produce food

  5. Seeds • Some have seeds and some don’t. • Seedless plants: spores • Spore: A single cell that can develop into a new plant that is exactly like the plant that produced it. • Plants with seeds: Seeds produce new plants. Can be flowering or not. • Seed: Contains the undeveloped plant, stored food and protective covering

  6. How are seedless and seed plants different? • Most plants produce seeds. • Have male and female structures that produce male and female cells. • Seeds form when male and female cell join. • Food in seed helps undeveloped plant grow.

  7. How are seedless and seed plants different? • Seedless plants use spores. • First grow a stalk with leaves, or fronds. • Underside has spore cases with thousands of tiny spores. • Spores drop near plant or blow away. • Won’t grow until they’re in the right conditions. Think: water.

  8. Seed plants • Angiosperms: Plants that produce flowers • Fruits, vegetables, grains and almost all nuts • Most abundant • Gymnosperm: Plants that produce seeds inside a cone • Evergreens • Cone falls, breaks and releases seeds and seeds taken away by wind, water or animals.

  9. What do flowers do? • Flowers: reproductive organs of angiosperms • Male part: stamen-produces pollen grains that contain male cells • Female part: pistel-the pollen grains go here to the same plant or to a different pistel • Pollination: the process described above • Bright colors and scents attract animals so they can transport the pollen grains

  10. What do flowers do? • Once pollen grain reaches pistil, travels down it to reach a female egg cell. • Once they meet, a seed forms, eventually develops and a fruit forms around it. • The fruit protects the seed. • Fertilization: when male and female cell join • Seeds move in many ways: wings, hooks, animals

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