Crossword Puzzle on Leaves, Stomatal Closure and Opening and Transpiration

3. 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. the most familiar type of leaf which is large, flat and green.
5. triggers the activation of proton pumps
7. the expanded, light-harvesting and CO2- absorbing part of a leaf
8. type of plants that have no abscission
13. 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
17. usually consists of a single layer of parenchyma cells
18. joins the lamina to the stem at a node
19. are tiny openings or pores in plant tissue that allow for gas exchange
21. 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
22. protects shoot apical meristem
24. the process of water movement through a plant and its evaporation from aerial parts
25. stomata is below the surface of the leaf,an area where the epidermis is depressed into the leaf with stomata

1. releases enzymes that weaken the cell walls
2. if ______ is low,the stomata opensso that photosynthesis can continue
5. a set of cells, which may be parenchyma, collenchyma or sclerenchyma, that surround vascular bundles of a leaf
6. pigment that absorbs blue light strongly
9. stomata remain closed during a prolonged drought
10. type of mesohyll located on the lower part of leaf
11. the tissues between upper and lower epidermis
12. shoot is still young and small
14. type of mesohpyll on the upper part of leaf
15. release water from xylem and load sugar into phloem
16. leaves that have no petiole
20. regulates the opening and closing of the stomata depending on the time of day
23. holds the blade out into the light and minimize shading of flowers