Lesson 2: Plant Structures and Their Functions

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Across
  1. 3. Plant tissue that is neither vascular nor dermal, responsible for photosynthesis, storage, and support.
  2. 7. A thin layer of plant tissue between the endodermis and the phloem, responsible for the development of lateral roots.
  3. 9. A gaseous plant hormone that promotes fruit ripening and leaf abscission.
  4. 11. A non-directional plant movement in response to a stimulus, such as the closing of a Venus flytrap.
  5. 13. The outermost layer of cells covering the primary plant body, providing protection and regulating gas exchange.
  6. 15. A plant hormone that promotes cell elongation and regulates growth processes like phototropism.
  7. 16. Plant hormones that stimulate stem elongation, seed germination, and flowering.
  8. 20. A type of cell found in xylem that forms a continuous tube for water transport in angiosperms.
  9. 21. The stalk that joins a leaf to a stem.
  10. 22. The layer of tissue in a plant root or stem located between the epidermis and the vascular tissue.
  11. 23. A specialized cell located next to a sieve tube member that helps manage its metabolic activity.
Down
  1. 1. A layer of tall, column-shaped cells under the upper epidermis of a leaf, primary site of photosynthesis.
  2. 2. Specialized plant cells in the epidermis of leaves and stems, used to control gas exchange by opening and closing stomata.
  3. 4. The vascular tissue in plants that conducts water and dissolved nutrients upward from the root.
  4. 5. A growth response of a plant toward or away from a directional stimulus like light or gravity.
  5. 6. A living cell in the phloem that forms the main channel for transporting organic nutrients.
  6. 8. Elongated, tapering xylem cells that help conduct water and provide structural support.
  7. 10. Small hair-like or spike-like outgrowths from the epidermis of a plant, used for protection or to reduce evaporation.
  8. 12. A layer of loosely packed, irregularly shaped cells in a leaf with air spaces for gas exchange.
  9. 14. The process of water movement through a plant and its evaporation from aerial parts, such as leaves.
  10. 17. The innermost layer of the cortex in plant roots, forming a selective barrier for water and minerals.
  11. 18. The vascular tissue in plants that conducts sugars and other metabolic products downward from the leaves.
  12. 19. A section of tissue at the tip of a plant root that protects the growing point as it pushes through soil.