Chapter 5 Crossword Puzzle Part 2

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Across
  1. 3. The movement of materials through a cell membrane using the cell's energy (usually from an area of low concentration to an area of high concentration).
  2. 6. Movement of specific molecules across cell membranes through protein channels (does not require energy, from an area of high concentration to an area of low concentration).
  3. 8. Makes ribosomes and stores RNA and proteins. (dark area in nucleus on diagrams
  4. 11. A thin, flexible barrier around every cell; regulates what enters and leaves the cell.
  5. 14. An type of vacuole, an organelle containing digestive enzymes.
  6. 15. Found only in eukaryotic cells; controls actions of the cell and contains genetic material (DNA).
  7. 17. Tiny hairlike extensions that move together in a sweeping motion to move the cell or move items like mucus past the cell.
  8. 18. Transforms energy from sugars into usable energy (ATP) for the cell.
  9. 21. The movement of substances across a cell membrane without the use of energy by the cell (from an area of high concentration to an area of low concentration).
Down
  1. 1. The maintenance of stable internal conditions.
  2. 2. A system of membranes that modifies and packages proteins for export by the cell (post office of cell).
  3. 4. A solution that is less concentrated than the cytoplasm in the cell (low solute concentration, higher water concentration).
  4. 5. The double-layered sheet that forms the core of nearly all cell membranes made of lipids (water-fearing tails facing inward toward other water-fearing tails and water-loving heads on the inside and outside of the watery environment of the cell).
  5. 7. A control mechanism that causes the process to slow down or stop.
  6. 9. A storage container for starches in plants.
  7. 10. Clusters of DNA, RNA, and proteins in the nucleus of a cell.
  8. 11. found in both animal and plant cells; builds parts for cytoskeleton
  9. 12. When the cell and solution that they are in the same concentration of solutes so same concentration of water.
  10. 13. A control mechanism that occurs when a substance causes the process to speed up.
  11. 16. The rigid outer layer of a cell (outside the cell membrane) that provides strength and rigidity.
  12. 19. A solution that is more concentrated than the cytoplasm in the cell (high solute concentration, lower water concentration).
  13. 20. Diffusion of water through a selectively permeable membrane (movement from an area of high water concentration/low solute concentration to low water concentration/high solute concentration).