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Do Now: Page 23

Do Now: Page 23. Thanks. Page 23. Page 23. Page 23. Page 19. Page 18. Homework Review. Homework Review. Leaves – Page 10. (The page with the dark circle on the bottom of it). Cuticle – . Protects the leaf against water loss and insect invasion. Stoma – .

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Do Now: Page 23

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  1. Do Now: Page 23 Thanks

  2. Page 23 Page 23

  3. Page 23

  4. Page 19

  5. Page 18

  6. Homework Review

  7. Homework Review

  8. Leaves – Page 10 (The page with the dark circle on the bottom of it)

  9. Cuticle – • Protects the leaf against water loss and insect invasion

  10. Stoma – • One of many small openings that can open and close to allow gas exchange and to prevent water loss

  11. Review Xylem and Phloem • Xylem – carries water and nutrients from the roots to the branches and leaves • Phloem – transports products produced in photosynthesis throughout the plant

  12. 1 Palisade mesophyll - upper layer of cells containing cells that absorb light that enters the leaf

  13. 2 Upper Epidermis – made of thick cells that resist tearing

  14. 3 Cuticle – waterproof barrier that prevents water loss

  15. 4 Vascular Tissue – Xylem and Phloem

  16. 5 Guard Cells – specialized cells that surround the stoma and control their opening and closing

  17. 6 Stoma (plural stomata) – openings in the epidermis that allow CO2, H2O and O2 to diffuse into and out of the leaf

  18. 7 Spongy Mesophyll – contains cells for photosynthesis and has air spaces

  19. 8 Cuticle – I already gave you the definition for this so I’m not doing it again

  20. 9 Lower Epidermis – same as the upper, but lower

  21. 10 Air space – connect with the exterior through the stoma

  22. Do Now: Page 27 – Label as much as you can • Homework: Page 684, 1 – 3 • Quiz Monday! Labeling the leaf, flower and root

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