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Across 5. Gives the membrane stability 7. Cell surface molecules involved in self-recognition and the immune response 8. Increased ___________ _______ increases the rate of diffusion (2 Words) 9. Diffusion of water molecules across a partiall permeable membrane 10. The body's reaction to a foreign antigen (2 Words) 16. Produced by mitochondria 17. Small polar molecules move through __________ ____________ (2 Words) 18. Loves water 20. Outside of the cell is called __________ 21. Hates water 22. A Phospholipd with a carbohydrate chain attatched to it 23. When something leaves the cell 24. The diffusion of molecules through carrier proteins or channel proteins (2 Words)

Down 1. Proteins act as ___________ for molecules in cell signalling 2. A protein with a carbohydrate chain attached 3. A protein that carries molecules across the plasma membrane (2 Words) 4. Membranes are fluid for faster and easier _________ 6. Regulates the movement of substances into and out of the cell (2 Words) 11. Organism made up of cells containing a nucleus 12. High ________increases fluidity 13. The inside of the cell is called ___________ 14. The molecules of a membrane arrange themselves into a ___________ 15. Movement of molecules across the plasma membrane that requires energy (2 Words) 19. When something enters the cell