Biology Module 19

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Across
  1. 1. tubular cell in phloem; lacks nucleus
  2. 4. protective tissue that forms from the hardening of the outside layers of the ovule
  3. 5. vascular plant tissue composed of tubular cells
  4. 9. tubular cell in the xylem that has tapered ends; has small openings for transport of water and minerals
  5. 11. first part of the embryo to emerge from the seed and begin to absorb water and nutrients from the environment
  6. 12. region of the stem nearest the seed
  7. 15. male reproductive organ of most flowers composed of a filament and an anther
  8. 16. plants that do not have vascular tissues
  9. 17. colorful flower structure that attracts pollinators and provides them a landing place
  10. 18. openings in the outer cell layers of leaves that enable the exchange of gases even with the presence of a waxy cuticle
  11. 20. tissues found in vascular plants composed of tubelike, elongated cells through which food, water, and other materials are transported throughout the plant; include xylem and phloem
  12. 23. seed structure that stores food or helps absorb food for the sporophyte of vascular seed plants
  13. 24. tissue that provides nourishment to the developing embryo of flowering plants
  14. 25. plants that have vascular tissues; enables faster movement of substances
Down
  1. 2. hollow, tubular cell in the xylem
  2. 3. process in which a seed’s embryo begins to grow
  3. 6. in plants, the outermost layer of flattened cells that covers and protects all parts of the plant
  4. 7. controls the opening and closing of the stomata
  5. 8. a plant organ of seed plants consisting of an embryo, a food supply, and a protective coat; protects the embryo from drying out
  6. 10. vascular plant tissue made of tubular cells joined end to end
  7. 13. flower organ that protects the bud
  8. 14. type of asexual reproduction in plants where a new plant is produced from existing plant organs or parts of organs
  9. 15. compact cluster of spore bearing structures in some seedless vascular plant sporophytes
  10. 17. flower’s female reproductive organ; it is usually composed of a stigma, a style, and an ovary
  11. 19. plant tissue that is not meristematic, dermal, or vascular; has diverse functions, including photosynthesis, storage, and support
  12. 21. cell with nucleus that helps transport sugars and other organic compounds through sieve tubes
  13. 22. period of little or no growth that varies from species to species