Across
- 3. releases enzymes that weaken the cell walls
- 6. leaves that have no petiole
- 7. type of plants that have no abscission
- 11. pigment that absorbs blue light strongly
- 13. the process of water movement through a plant and its evaporation from aerial parts
- 18. usually consists of a single layer of parenchyma cells
- 19. triggers the activation of proton pumps
- 23. if ______ is low,the stomata opensso that photosynthesis can continue
- 24. regulates the opening and closing of the stomata depending on the time of day
- 25. type of mesohpyll on the upper part of leaf
Down
- 1. are tiny openings or pores in plant tissue that allow for gas exchange
- 2. process in which higher solute concentration inside the central vacuole of the guard cells causes water from the epidermal cells surrounding the guard cells move into the guard cells
- 4. type of mesohyll located on the lower part of leaf
- 5. stomata remain closed during a prolonged drought
- 8. holds the blade out into the light and minimize shading of flowers
- 9. joins the lamina to the stem at a node
- 10. release water from xylem and load sugar into phloem
- 12. evaporation of water through the stomata or cuticle and has a cooling effect on the plant as heat is carried away by the evaporating water
- 14. the expanded, light-harvesting and CO2- absorbing part of a leaf
- 15. the most familiar type of leaf which is large, flat and green.
- 16. formed by adjacent undamaged cells that swell and become corky and covers the wound left by the fallen leaf to protect the plant from pathogens
- 17. protects shoot apical meristem while it is young
- 20. a set of cells, which may be parenchyma, collenchyma or sclerenchyma, that surround vascular bundles of a leaf
- 21. the tissues between upper and lower epidermis
- 22. stomata is below the surface of the leaf,an area where the epidermis is depressed into the leaf with stomata