Biology

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Across
  1. 2. concentration of a substance from one location to another
  2. 4. when a object is small enough to pass through the bilayer
  3. 6. water loving
  4. 9. provide corridors that allowa a specific molecule of ion to cross the membrane
  5. 11. diffusion of water through a selectively permeable membrane
  6. 13. a barrier that controls what enters and leaves the cell
  7. 15. some can pass across them others can not
Down
  1. 1. when a molecule needs energy to pass through the cell membrane
  2. 3. when a molecule can make its way across the membrane without the use of energy
  3. 5. a protein that transport substances across a cell membrane
  4. 7. movement of specific molecules across cell membranes through protein channels
  5. 8. movement of materials into out of or within of a cell
  6. 10. maintain balance
  7. 12. water fearing
  8. 14. makes up plasma and organelle membranes