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Today’s Agenda…

This agenda covers a review of vascular tissue in plants, along with a discussion on seedless and seed plants. Topics include identifying vascular tissue layers in leaves, understanding the purpose of stems and roots, and comparing gymnosperms and angiosperms. Homework includes creating a T-chart comparing these two types of seed plants.

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Today’s Agenda…

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  1. Today’s Agenda… • Get your clickers and complete bellringer • Review • Notes on Vascular Tissue/ Angiosperms & Gymnosperms

  2. Review • Which plants are seedless plants? • Which plants are seed plants? • What is the difference between vascular and nonvascular plants?

  3. Review • Which layer of the leaf contains the cuticle? • Which layer of the leaf has the most chloroplasts in its cells? • Which layer of the leaf contains vascular tissue? • What are stomata? • How do stomata open and close?

  4. Review • What is the purpose of stems? • What purposes do roots serve?

  5. PLANTS Seedless Plants Seed Plants Non vascular Seeds in Cones Seeds in Flowers Vascular

  6. Vascular Tissue/ Angiosperms & Gymnosperms Study Pack #6

  7. Today’s Goals… • I can describe the different types of vascular tissue. • I can distinguish between angiosperms and gymnosperms.

  8. Vascular Tissue • Vascular system -Tube-like structures that carry water, nutrients, and other substances through the plant • Three tissues make the vascular system in a seed plant • Xylem • Phloem • Cambium

  9. Vascular Tissue • Xylem tissue • Made up of hollow, tubular cells that are stacked one on top of the other to form a vessel • Transport water and dissolved substances through the plant • Thick walls of xylem provide support • Runs from roots to leaves

  10. Vascular Tissue • Phloem tissue • Made of cells that are stacked to form tubes • Move food from where it is made to other parts of the plant where it is used or stored • Runs from leaves to roots

  11. Vascular Tissue • Cambium • Between xylem and phloem • Produces xylem and phloem cells • These new cells make the stems and roots thicker

  12. Gymnosperms • Vascular plants that produce seeds not protected by fruit • Do not have flowers • Leaves are needlike or scalelike • Evergreens • Examples – pines, firs, spruces, redwoods

  13. Angiosperms • Has flowers and produces fruits with one or more seeds • Example: peaches

  14. Importance of Seed Plants • Paper • Furniture • Clothing • Food

  15. Homework… • Create a T-chart to compare angiosperms and gymnosperms

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