Plant Structures

4. stalk that extends from stem to the base of the leaf
8. elongated cells with unevenly thickened walls that provide structural support
10. main root the grows vertically from which many smaller lateral roots arise
13. points of attachment for leaves, aerial roots, and flowers
14. outer layer of cork cells that protect woody plants from damage
15. transports water and nutrients in a plant while also providing support
16. arrangement of leaves on a stem
17. control the opening and closing of stomata
19. cells have secondary cell walls that are thickened with deposits of lignin but many of them are dead at maturity

1. region of continuous cell growth and cell division
2. aerial stem modification that enables the plant to climb surfaces for support
3. membrane of the central vacuole
5. hair-like structures on the epidermal surface
6. the ground tissue towards the interior of the vascular tissue in a stem or root
7. the most common plant cells
9. make and store other plant pigments
11. membrane-bound organelles with their own DNA
12. waxy layer known that covers the leaves of all plant species to reduce the rate of water loss from the leaf surface
18. waxy substance called that is present on the walls of the endodermal cells
20. travels the length of the leaf and branches to each side producing veins of vascular tissue