Roots Crossword

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Across
  1. 1. Region of cells which mature and specialize; root hairs appear for absorption.
  2. 5. Structure on legume roots that houses nitrogen-fixing bacteria.
  3. 11. Layer inside endodermis; gives rise to lateral roots.
  4. 12. Extensions that increase absorption area.
  5. 15. Mutualistic relationship between fungi and plant roots; fungi absorb and concentrate phosphorus better than roots alone.
  6. 16. Pull the plant deeper into the soil (e.g., lily bulbs).
  7. 17. Outermost layer; absorbs water/minerals.
  8. 18. Covers tip; protects meristem.
  9. 20. Moves water, minerals, and food through the plant.
  10. 21. Waxy barrier in endodermis; controls movement of water/nutrients.
  11. 24. Specialized parasitic roots that penetrate host tissue and absorb nutrients.
  12. 25. Swollen roots that store water (e.g., pumpkin family).
  13. 28. A Relationship where both organisms benefit (e.g., mycorrhizae).
  14. 29. Process by which bacteria convert nitrogen gas into nitrates usable by plants.
  15. 30. Roots growing from stem or leaf (e.g., corn prop roots).
Down
  1. 2. Secures the plant in place for support.
  2. 3. Region which contains the apical meristem; where new cells are formed through mitosis.
  3. 4. Allows asexual reproduction in some plants.
  4. 6. One large central root (e.g., carrot).
  5. 7. “Breathing roots” that extend above water for gas exchange (e.g., mangroves).
  6. 8. Large, flared roots for stability in tropical trees.
  7. 9. Inner boundary of cortex; contains Casparian strip.
  8. 10. The first root emerging from a germinating seed.
  9. 13. Many small roots forming a dense mat (e.g., grass).
  10. 14. Arise from stems or leaves rather than the radicle; used for propagation.
  11. 19. MOST important function, Takes in water and minerals from the soil.
  12. 22. Depend on host plants for nutrition; lack chlorophyll (e.g., dodder).
  13. 23. The physical features of an area of land that influence soil formation and water flow (e.g., steep slopes erode, flat land floods).
  14. 26. Roots that grow above the ground (e.g., orchids).
  15. 27. Region of cells which enlarge and push the root tip deeper into soil; no new division occurs.
  16. 31. Stores food (carbohydrates).