Across
- 2. An arrangement of mesophyll cells in a ring around the vascular bundle - like a wreath - in C4 plants
- 3. primary photosynthetic tissue in the leaf
- 5. plants that grow in water
- 7. mesophyll cells are of this cell type
- 9. desert plants
- 12. specialized epidermal cells that form hairs
- 13. ______ acid acts to move ions out of guard cells and close stomata
- 15. the plant hormone that promotes leaf abscission
- 17. a series of irreversible changes leading toward death
- 18. tough outer cell layer that protects inner leaf tissues
Down
- 1. eudicot leaves have ________ and spongy parenchyma cells
- 4. responsible for autumn color in leaves
- 6. _____ pressure opens stomata
- 8. a waxy layer that slows evaporation from the leaf surface
- 9. ____________, along with phloem form a leaf's vascular bundles or veins.
- 10. ______ cells control the opening of stomata
- 11. your average temperate-climate plant
- 14. ions accumulate in guard cells during daylight and act to open stomata as water follows the ions on an osmotic gradient
- 16. cells that fold and unfold a leaf
- 17. pores in the epidermis that allow for gas exchange