Chapter 9 Concepts

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Across
  1. 1. a sugar that is used by cells as an energy source
  2. 4. a green pigment in chloroplasts that traps light energy for photosynthesis
  3. 6. the tendency of water molecules to stick to certain surfaces
  4. 7. combination of carious types of tissue that work together to perform a certain function
  5. 8. evaporation of water from leaves
  6. 10. a plant growth hormone produced in plant tips
  7. 11. a cluster of similar cells that share the same structure and function
  8. 13. a waxy substance coating the epidermis of plants, which prevents the evaporation of water
  9. 15. a protective outer layer of cells covering the leaves, roots and stem
  10. 17. plant response to stimulus
  11. 18. plant vascular tissue that carries water and minerals from the roots to the leaves
Down
  1. 1. the response of a plant to the pull of gravity
  2. 2. a small opening in the epidermal layer of a leaf that allows gases in and out
  3. 3. plant vascular tissues that carries sugars produced by leaves to various parts of the plant
  4. 5. process where plants use light energy to produce food in the form of carbohydrates
  5. 8. a type of xylem cell
  6. 9. a combination of organs and tissues that perform a shared complex function
  7. 12. the tendency of water molecules to stick to other water molecules
  8. 14. lens shaped openings perforating the bark of woody plants such as trees, allowing gas exchange between the environment and the living cells bellow the bark
  9. 16. environmental factors that induce a response from an organism