Plant Structures

2. outer layer of cork cells that protect woody plants from damage
5. membrane-bound organelles with their own DNA
10. waxy substance called that is present on the walls of the endodermal cells
11. region of continuous cell growth and cell division
14. stalk that extends from stem to the base of the leaf
15. the most common plant cells
16. make and store other plant pigments
18. elongated cells with unevenly thickened walls that provide structural support
19. waxy layer known that covers the leaves of all plant species to reduce the rate of water loss from the leaf surface

1. transports water and nutrients in a plant while also providing support
3. membrane of the central vacuole
4. main root the grows vertically from which many smaller lateral roots arise
6. aerial stem modification that enables the plant to climb surfaces for support
7. cells have secondary cell walls that are thickened with deposits of lignin but many of them are dead at maturity
8. travels the length of the leaf and branches to each side producing veins of vascular tissue
9. control the opening and closing of stomata
12. hair-like structures on the epidermal surface
13. points of attachment for leaves, aerial roots, and flowers
15. the ground tissue towards the interior of the vascular tissue in a stem or root
17. arrangement of leaves on a stem