Unit 4.2 Vocab

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Across
  1. 3. Inner bark; the principle tissue concerned with the translocation of elaborated food produced in the leaves, or other areas, downward in the branches, stems, and roots.
  2. 5. The actively growing cells between the bark and the wood in a tree or shrub. They give rise to secondary xylem and phloem of dicotyledonous stems.
  3. 7. The intake of water, gases, nutrients, or other substances by plants.
  4. 8. The outer layer or region of any organ.
  5. 10. Undeveloped or embryonic shoot and normally occurs in the axil of a leaf or at the tip of the stem.
  6. 13. A root system that is comprised of profusely branched roots with many lateral rootlets.
  7. 17. The development or growth of a cell, organ, or immature organism into a mature organism.
  8. 18. The distension of the cell wall and protoplasmic layer of plants by fluids. It is essential to growth.
  9. 20. Stalk, trunk, branch of a plant. It can be vertical or horizontal.
  10. 21. Any of a number of field and garden crops whose underground roots are used as food for people and animals, like turnips, beets, carrots, and sweet potatoes.
  11. 22. A flattened outgrowth from a plant stem, varying in size and shape, usually green, which is concerned primarily with the manufacture of carbohydrates by photosynthesis.
  12. 25. The primary descending root, usually conical, of a plant from which lateral branching roots may develop; e.g., as in carrots and alfalfa.
Down
  1. 1. A lateral branch of a primary or main root.
  2. 2. The fluid-conducting tissues of a plant including both xylem (water-conducting) and phloem (food-conducting) tissues.
  3. 4. A hair-like growth on an epidermal cell of the root. It absorbs water and mineral nutrients for the plant.
  4. 6. A thin, flexible sheet of vegetable or animal tissue; the thin protoplasmic tissue connecting, covering, or lining a structure, such as a cell of a plant or animal.
  5. 9. The “plumbing” system that conducts water and dissolved mineral up the stems from the roots
  6. 11. The temporary or transient loss of turgidity in a plant, caused by a rate of transpiration in excess of the rate of absorption of water.
  7. 12. A plant that lives for two years and then dies.
  8. 14. The flow of a fluid through a semi-permeable membrane separating two solutions, which permits the passage of the solvent but not the dissolved substance. The liquid will flow from a weaker to a stronger solution, thus tending to equalize concentrations.
  9. 15. Swollen, or tightly drawn, said of a membrane or covering expanded by pressure from within; e.g., growing plants have turgid cells.
  10. 16. The main descending axis of a plant; the pole of the embryo opposite the shoot.
  11. 19. A plant that lives for more than two years.
  12. 23. The extreme tip of the root consisting of a group of cells that slough off and are replaced as the tip moves through the soil. It protects the growing region of the root.
  13. 24. The reproductive structure of a seed-bearing plant, consisting of the male and/or female organs that are surrounded by one or two series of outer coverings(calyx and corolla).