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Diffusion & Osmosis worksheet ANSWERS

Diffusion and Osmosis worksheet 1. How are the molecules moving in the examples below? Write Osmosis or Diffusion . a) The student sitting next to you just came from gym class and forgot to shower and you can tell. D. b) After sitting in the bathtub for hours, your fingers start to look like prunes. O. c) The girl sitting two rows ahead of you put on too much perfume this morning. D. d) One way to get rid of slugs in your garden is to sprinkle salt on them, so they shrivel u e) Yum! Something smells good. The neighbors are cooking on the grill! D. f) Gargling with salt water when you have a sore throat causes your swollen throat cells to shrink and feel better. O. g) Oxygen molecules move from the air sacs in the lungs across the cell membranes into the blood D.

7. Diffusion A 8. Equal amount of water inside a cell as outside E 9. More water outside a cell than inside G 10. Osmosis C 11. More solute outside a cell than inside F 12. Selectively permeable membrane D into cells b) Amount of a substance in a certain place c) Moves water into and out of cells d) Allows some substances through

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