Unit 1b: Cellular Transport Vocabulary Crossword Puzzle

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Across
  1. 4. The substance in a solution that is being dissolved (salt)
  2. 5. A type of active transport where a vesicle inside the cell fuses with the cell membrane to spit out or release large waste and materials outside the cell.
  3. 8. The basic building block of the cell membrane. It is a special fat molecule with a water-loving head and two water-fearing tails, which line up in two layers to create the cell's outer wall.
  4. 12. When a cell placed inside a hypertonic solution shrinks or shrivels.
  5. 14. The concentration of solute outside the cell is lower than inside the cell.
  6. 16. The movement of materials across the cell membrane that requires energy (ATP). This happens when the cell needs to force molecules to move against the concentration gradient, from a low concentration to a high concentration.
  7. 17. The concentration of solute outside the cell is higher than inside the cell.
  8. 19. The ability of a cell membrane to regulate what molecules enter and leave the cell, letting some things pass through easily while blocking others.
  9. 20. A process where a living thing keeps its internal environment stable and balanced.
  10. 21. The measure of the effective osmotic pressure gradient; the water potential of two solutions separated by a partially-permeable cell membrane.
  11. 22. When a cell placed inside an isotonic solution stays the same size.
  12. 23. A type of passive transport where molecules spread out evenly on their own, moving from an area of high concentration to an area of low concentration.
  13. 24. The concentration of solute outside the cell is equal to the inside of the cell.
  14. 25. The substance in a solution that does the dissolving (water)
  15. 26. A type of active transport where the cell membrane wraps around a large particle outside the cell, pinches off, and brings it inside the cell using a bubble called a vesicle.
Down
  1. 1. "Water-loving." This describes molecules (like the heads of phospholipids) that are attracted to water and dissolve in it easily.
  2. 2. When an animal cell placed inside a hypotonic solution swells to the point of bursting.
  3. 3. The protective outer barrier of all cells that regulates/controls what enters and exits the cell.
  4. 6. A specific type of passive transport that uses channel proteins to diffuse ions and larger molecules through the cell membrane.
  5. 7. Proteins in the cell cell membrane that perform active transport, meaning they move substances against their concentration gradient and require energy (ATP).
  6. 9. Proteins that create water-filled pores in the cell membrane, allowing molecules (primarily specific ions) to diffuse passively down their concentration gradient.
  7. 10. The movement of materials across the cell membrane without using any of the cell's energy. Molecules naturally move from high concentration to a low concentration.
  8. 11. A mixture that forms when a solute is dissolved into a solvent (salt dissolved into water).
  9. 13. "Water-fearing." This describes molecules (like the tails of phospholipids or oils) that repel water and will not mix with it.
  10. 15. When a cell placed inside a hypotonic solution swells.
  11. 18. A specific type of passive transport where water diffuses through a selectively permeable membrane to balance out the concentration of substances.