Crossword Puzzle on Leaves, Stomatal Closure and Opening and Transpiration

1. type of mesohyll located on the lower part of leaf
3. the tissues between upper and lower epidermis
6. if ______ is low,the stomata opensso that photosynthesis can continue
9. regulates the opening and closing of the stomata depending on the time of day
10. holds the blade out into the light and minimize shading of flowers
11. the most familiar type of leaf which is large, flat and green.
12. 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
13. 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
15. are tiny openings or pores in plant tissue that allow for gas exchange
16. protects shoot apical meristem
18. release water from xylem and load sugar into phloem
21. type of mesohpyll on the upper part of leaf
22. 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
24. a set of cells, which may be parenchyma, collenchyma or sclerenchyma, that surround vascular bundles of a leaf
25. usually consists of a single layer of parenchyma cells
26. the process of water movement through a plant and its evaporation from aerial parts

2. pigment that absorbs blue light strongly
4. type of plants that have no abscission
5. shoot is still young and small
7. triggers the activation of proton pumps
8. releases enzymes that weaken the cell walls
14. leaves that have no petiole
17. the expanded, light-harvesting and CO2- absorbing part of a leaf
19. joins the lamina to the stem at a node
20. stomata remain closed during a prolonged drought
23. stomata is below the surface of the leaf,an area where the epidermis is depressed into the leaf with stomata