1. Session 3 Notes I.a. refers to the internal structures I.b. refers to the external appearance II. Primary Growth a. up and down i. apical meristem

2. PRIMARY GROWTH

3. Main Functions of a leaves 1.Photosynthesis 2.Water Evaporation 3.Gas Exchange 4.Storage – ex. Spinach (yum… ) Stem Petiole Blade

4. LEAVES - Morphology

5. LEAVES - Anatomy

6. Top of Leaf Cuticle Epidermis Bottom of Leaf Guard Cell Parenchyma Stoma Vein 1.Cuticle 2.Parenchyma 3.Stoma 4.Guard Cells 5.Vascular Bundle (Vein)

7. Main Functions of a stems 1.Support 2.Photosynthesis 3.Helps Transport water and nutrients 4.Storage – ex. Asparagus (yum… ) Axillary Bulb Node Leaf Primordia Apical Meristem Region 1.Apical Meristem 2.Axilary Bud

8. STEMS - morphology

9. STEMS - Anatomy

10. Epidermis Cortex (parenchyma) Phloem Pith (parenchyma) Vascular Bundles Xylem 1.Xylem 2.Phloem

11. Main Functions of a root 1.Below ground support (anchor) 2.Absorption of water and minerals from soil 3.Helps Transport water and nutrients through xylem 4.Storage – ex. Carrots are roots and store sugar making them sweet (yum… )

12. ROOTS - Morphology

13. ROOTS - Anatomy

15. II. Secondary Growth a.Increase in Girth (thickness) i.1. Apical Meristem b. Lateral Meristem i. Vascular Cambium

17. WOOD

18. vi. In Trees: 1.Wood 2.Bark