Amoeba sisters cells

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Across
  1. 3. uncharged molecules are ______
  2. 9. help charged ions enter the cell
  3. 10. helps maintain homeostasis
  4. 11. doesn't allow water to get through
  5. 12. only allows certain molecules to enter or exit the cell
  6. 13. powers active transport
  7. 14. moving molecules in and out of the cell without transfer proteins
Down
  1. 1. cells absorbing outside materials for the cell
  2. 2. allows water to get through
  3. 4. small group of molecules inside the cell membrane
  4. 5. helps water go through the cell
  5. 6. charged molecules are ______
  6. 7. the density of molecules in the cell
  7. 8. Moves molecules in and out of the cell using transport proteins
  8. 9. the molecules that make up the cell membrane