AP Biology - Membranes

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Across
  1. 3. To take something solid into the cell by engulfing . (ex: WBC and amoeba)
  2. 6. Another name for integral protein.
  3. 8. To remove something from a cell.
  4. 12. A protein that is embedded the entire width of the cell membrane. Involved in transporting large molecules.
  5. 14. A limp plant cell.
  6. 16. When two situations are compared, the one with MORE dissolved solute.
  7. 18. When a protein changes shape.
  8. 21. The movement of molecules from an area of high concentration to an area of low concentrations. No energy.
  9. 22. Another name for integral protein.
  10. 25. When an animal cell shrivels up due to a loss of water.
  11. 27. Osmosis and diffusion are both examples of this. NO energy.
  12. 28. When two situations are compared, the one with LESS dissolved solute.
  13. 30. These molecules don't pass through the cell membrane: glucose, ions, ?, polar molecules.
  14. 31. What is being dissolved.
  15. 32. Diffusion that requires the help of a transport protein, but still requires no energy. (happens with polar molecules and ions)
  16. 33. These molecules pass through the cell membrane: small, non-polar, oxygen, water , carbon dioxide and ?,
  17. 34. When plant cells are full of water and are firm.
Down
  1. 1. A membrane that allows some materials to pass through but not all materials.
  2. 2. Plant cell store water in their large ?.
  3. 4. To take something into the cell.
  4. 5. Allows for the facilitated diffusion of water.
  5. 6. A steroid that increases the fluidity of the cell membrane.
  6. 7. One of the functions of the cell membrane is for ? attachment.
  7. 9. When two situations are compared, both have equal amounts of dissolved solute.
  8. 10. Short polysaccharides.
  9. 11. A combination of protein and carbohydrate on the outside of a cell membrane. Often involved in cell identification.
  10. 13. The diffusion of water through a membrane.
  11. 15. The movement of water from an area of low concentration to an area of high concentration. Requires energy.
  12. 17. Active Transport (requires energy) moves molecules against the concentration ?.
  13. 19. A combination of protein and lipid on the outside of a cell membrane.
  14. 20. Have a hydrophobic tail and a hydrophilic head.
  15. 23. When a plant (cell) loses water.
  16. 24. The substances doing the dissolving.
  17. 26. When the number of water molecules entering the cell are the same as the number of water molecules leaving the cell, the cell is said to be in ?.
  18. 29. To break apart red blood cells.