Unit B Plants for Food and Fiber Science 7

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Across
  1. 1. The evaporation of water from the leaves of a plant, drawing up water through the rest of the plant.
  2. 3. A chemical intended to kill insects and other organisms that damage crops. Includes herbicides, insecticides and fungicides.
  3. 6. respiration The process that uses oxygen to release energy by breaking down glucose.
  4. 7. The support structures of the plant that hold the flowers, fruit and leaves.
  5. 8. A plant that bears its seeds directly on the surfaces of cones.
  6. 10. Long, straight roots that grow downwards.
  7. 11. Leaf-like parts that cover and protect the flower bud.
  8. 16. Rich, fertile soil that is made up of about equal parts of clay, sand, and silt. Contains large amounts of organic matter (nutrients).
  9. 17. Breeding The process of selecting a few organisms with desired traits to serve as parents of the next generation.
  10. 18. material formed from decaying leaves and other organic matter. Gives soil its rich black color.
  11. 20. The tiny structures that contain the male reproductive cells of a plant.
  12. 21. The sticky structure at the top of the female part of a flower where pollen grains get "trapped".
  13. 22. The diffusion of water from high to low concentration through a cell membrane.
  14. 26. The use of Earth's renewable and nonrenewable natural resources in ways that can continue long into the future.
  15. 27. The process whereby seeds or sprout and begin to grow.
  16. 29. The finest soil, made up of particles that are less than 0.002 mm in diameter. Holds water well and is easily compacted.
Down
  1. 2. A flowering plant that forms seeds.
  2. 3. The process plants and some other organisms use to convert light energy, carbon dioxide, and H2O into oxygen and glucose.
  3. 4. The movement of molecules from an area of higher concentration to an area of lower concentration.
  4. 5. Vascular tubes that transport water and minerals upwards from the roots to other parts of the plant.
  5. 9. Modified leaves which are usually bright in color to attract pollinators.
  6. 12. A reproductive process that involves only one parent and produces offspring that are identical to the parent. In plants it includes runners, tubers and suckers.
  7. 13. Small openings on the underside of a leaf through which oxygen and carbon dioxide can move.
  8. 14. The stage in which the male reproductive cells from the pollen fuse with the ovules in the ovary.
  9. 15. An organelle found in plant cells where photosynthesis occurs.
  10. 19. An organism that makes its own food using photosynthesis
  11. 23. The male reproductive part of a flower.
  12. 24. dispersal The spreading of seeds away from the plant that produced them. (By wind, water and animals)
  13. 25. The transfer of pollen from male reproductive structures to female reproductive structures in plants.
  14. 28. A flower structure that encloses and protects ovules and seeds as they develop.