Chapter 7 vocabulary (1-20)

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Across
  1. 3. an impermeable waxy substance present in the cell walls of corky tissues.
  2. 4. tissue strengthened by the thickening of cell walls, as in young shoots.
  3. 6. an inner layer of cells in the cortex of a root and of some stems, surrounding a vascular bundle
  4. 8. a flowering plant with an embryo that bears two cotyledons (seed leaves)
  5. 10. the outer layer of tissue in a plant, except where it is replaced by a periderm.
  6. 11. a flowering plant with an embryo that bears a single cotyledon (seed leaf).
  7. 15. a band of cell wall material deposited in the radial and transverse walls of the endodermis, and is chemically different from the rest of the cell wall; made of Suberin and sometimes lignin
  8. 16. a protective and waxy or hard layer covering the epidermis of a plant, invertebrate, or shell.
  9. 17. the 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.
  10. 18. a pore in the epidermis of a leaf, bounded by two guard cells and needed for efficient gas exchange
Down
  1. 1. a thin layer of plant tissue between the endodermis and the phloem.
  2. 2. each elongated microscopic outgrowth from the outer layer of cells in a root, they absorb moisture and nutrients from the soil.
  3. 3. strengthening tissue in a plant, formed from cells with thickened, typically lignified, walls.
  4. 5. a strand of conducting vessels in the stem or leaves of a plant, typically with phloem on the outside and xylem on the inside.
  5. 7. Cellsa thin-walled unsuberized cell found in the endodermis of vascular plants often opposite the protoxylem strands —called also transfusion cell.
  6. 9. region of the plant cell wall in which secondary wall is interrupted, exposing the underlying primary cell wall.
  7. 12. a fungus which grows in association with the roots of a plant in symbiotic or mildly pathogenic relationship.
  8. 13. cell type in xylem and the building blocks of vessels.
  9. 14. the cellular tissue, typically soft and succulent, found chiefly in the softer parts of leaves, pulp of fruits, bark and pith of stems, etc.
  10. 16. an outer layer of tissue immediately below the epidermis of a stem or root.