Plant Leaves

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Across
  1. 5. (veined) A leaf type that has veins running parallel to each other as in a blade of grass.
  2. 6. cells (layers) Tissues just below the epidermis of the leaf of a plant; most photosynthesis takes place in the palisade layers.
  3. 7. The process by which water vapor is released to the atmosphere by the leaves or other parts of a living plant.
  4. 8. 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.
  5. 10. In botany, the part of a leaf or branch attached to a stem or trunk.
  6. 12. The end of a branch, twig, etc.
  7. 14. The cellular layer of an organism; the outer skin.
  8. 16. The expanded portion of a leaf.
  9. 17. Designating the chemical changes that take place in living plant and animal cells whereby one compound is converted to one or more other compounds.
  10. 18. leaves Leaf blades consisting of one unit.
  11. 21. (radiant energy) Energy transmitted in wave motion. Light.
  12. 22. Process by which green plants, using chlorophyll and the energy of sunlight, produce carbohydrates from water and carbon dioxide, and release oxygen.
  13. 23. leaf A leaf composed, usually, of two or more leaflets.
  14. 24. Stalk, trunk, branch of a plant. Can be vertical or horizontal.
  15. 26. A small, immature leaf. A separate division of a compound leaf.
Down
  1. 1. A common monosaccharide sugar that serves as the building block for many complex carbohydrates; blood sugar.
  2. 2. The arrangement of the veins in a leaf.
  3. 3. Minute objects within plant cells which contain the green pigment, chlorophyll.
  4. 4. The edge, border, or borderline, as margin of a leaf.
  5. 6. The stem of any leaf.
  6. 9. A group of related plants or animals that differs from other similar groups by characteristics too trivial or inconstant to be recognized as a species; often any category of lower rank than a species.
  7. 11. The parenchyma tissue between the upper and lower epidermis of a leaf; the cells usually contain chloroplasts.
  8. 13. With three or more nerves, lobes, or leaflets radiating fanwise from a common basal point of attachment.
  9. 15. A substance present in all green plants; it evidences itself as the green coloring in leaves. Chlorophyll transforms light energy from the sun into chemical energy for the manufacture of plant food from carbon dioxide, water, and essential soil minerals. This process is called photosynthesis.
  10. 19. Constructed somewhat like a feather, with the parts (e.g., veins, lobes, branches) arranged along both sides of an axis, as in pinnate venation. A pinnate leaf is compound, with the leaflets arranged on both sides of the rachis.
  11. 20. Openings in the epidermal layer of plant tissues which leads to intercellular spaces. These small openings may open or close, depending on climatic conditions, by means of guard or bullform cells, etc., and are necessary to photosynthesis, transpiration, etc. Also called breathing pores.
  12. 25. The main vein of a leaf; located halfway between the two edges. It is a continuation of the leaf stalk.