CELL GATEKEEPER

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Across
  1. 2. Water-repelling tail of phospholipid
  2. 3. Plant cell in hypotonic solution becomes ____.
  3. 4. Absorption of mineral ions by root hair uses ______ transport
  4. 5. Movement using carrier/channel proteins without energy
  5. 8. Maintains membrane flexibility and stability
  6. 10. Example of molecule transported by facilitated diffusion
  7. 13. Lipid + carbohydrate chain.
  8. 18. Model describing plasma membrane as fluid and mosaic
  9. 19. Transport without energy
  10. 20. Protein that forms pores for ions
  11. 21. Water-attracting head of phospholipid
  12. 22. Shrinking of red blood cells in hypertonic solution
  13. 23. Pump moving Na+ out and K+ in
  14. 24. Protein + carbohydrate chain
Down
  1. 1. Double layer forming plasma membrane
  2. 6. Movement from high to low concentration
  3. 7. Movement of water across selectively permeable membrane
  4. 8. Protein that changes shape to move molecules
  5. 9. Burst of red blood cells in hypotonic solution
  6. 11. Requires ATP and moves against gradient
  7. 12. Membrane that allows some substances only
  8. 14. Movement until equilibrium reached
  9. 15. Plant cell membrane pulls away from wall.
  10. 16. Cell solution with equal concentration
  11. 17. Gas exchange in alveoli occurs by ______ diffusion