cell theory

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Across
  1. 5. Proteins that help molecules travel through the cell membrane
  2. 8. Molecules that cannot travel through the membrane without help
  3. 10. Controls what goes in and out with phospholipids
  4. 11. The type of energy that is needed to go from low to high concentration
  5. 13. Molecules that move from one concentration to another
  6. 14. Molecules that can travel through the membrane with no help
  7. 15. Transport where molecules move from a high to a low concentration
Down
  1. 1. A word used to mean two layers
  2. 2. Main structure for the cell membrane
  3. 3. Diffusion that does require protein channels to help
  4. 4. Stable environment found in the cell
  5. 6. Diffusion that doesn't require protein channels
  6. 7. Is needed to get important materials out
  7. 9. Proteins that move water across the membrane
  8. 12. The process of which cells take in outside materials