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Across 3. Helps to control what exits and enters the cell. 5. The inside of the cell. 6. Describes the plasma membrane in animal cells. (3 Words) 9. Allow specific molecules to pass through the plasma membrane. (2 Words) 12. The movement of water. 14. Surrounds the cell. (2 Words) 17. 2 molecular layers that make up the plasma membrane. 18. Loves getting wet. 19. Stops the immune system destroying the cell.

Down 1. Adenosine triphosphate. 2. The opposite of Diffusion. (2 Words) 4. A protein that goes striaght through the cell. (2 Words) 7. Going against the concerntration gradiant. (2 Words) 8. Proteins that only sit on the outsides of the membrane. 9. Helps with membrane fluidity. 10. Takes place outside the cell. 11. protein with a carbohydrate attached. 13. A lipid with carbohydrates attached. 15. A cell with membrane bound organelles. 16. when a molecule moves from a high concerntration to a low concerntration.