Chapter 7 Crossword

3. a type of water-conducting cell in the xylem that lacks perforations in the cell wall.
5. the inner tissue (parenchyma) of a leaf, containing many chloroplasts.
9. protective and waxy or hard layer covering the epidermis of a plant, invertebrate, or shell.
10. a flowering plant with an embryo that bears two cotyledons
13. a layer of columnar cells rich in chloroplasts found beneath the upper epidermis of foliage leaves
16. the outer layer of tissue in a plant, except where it is replaced by a periderm
18. a complex organic polymer deposited in the cell walls of many plants, making them rigid and woody.
19. vascular tissue in plants that conducts water and dissolved nutrients upward from the root and also helps to form the woody element in the stem.

1. plant polysaccharide, it is made by the glucan sythase-like gene (GLS) in various places within a plant.
2. vascular tissue in plants that conducts sugars and other metabolic products down from the leaves.
4. tissue strengthened by the thickening of cell walls, as in young shoots.
6. the cellular tissue, typically soft and succulent, found chiefly in the softer parts of leaves, pulp of fruits, bark and pith of stems, etc.
7. pore in the epidermis of a leaf, bounded by two guard cells and needed for efficient gas exchange.
8. fungus which grows in association with the roots of a plant in symbiotic or mildly pathogenic relationship
9. an outer layer of tissue immediately below the epidermis of a stem or root.
11. inner layer of cells in the cortex of a root and of some stems, surrounding a vascular bundle.
12. a layer of loosely packed and irregularly shaped chlorophyll-bearing cells that fills the part of a leaf between the palisade layer and the lower epidermis.
14. an inert impermeable waxy substance present in the cell walls of corky tissues.
15. a thin layer of plant tissue between the endodermis and the phloem.
17. region of the plant cell wall in which secondary wall is interrupted, exposing the underlying primary cell wall.