Diffusion and Osmosis Worksheet - Joseph Minato › cells › lessons › diffusion... · Diffusion...
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Diffusion and Osmosis Worksheet, Page 1 of 3, 1/12/12 Name _______________ Class _________________ Date _________ Diffusion and Osmosis Worksheet 1. Write the definition of diffusion from memory. If you can’t, refer to the vocabulary sheet and practice until you can. 2. A membrane that allows all molecules in the solution to pass through is called what type of membrane? 3. A membrane that allows some molecules in the solution, but not others, to pass through is called what type of membrane? 4. A membrane that does not allow any molecules in the solution to pass through is called what type of membrane? 5. Look at the diagram below. Describe what will happen over time. Sketch the situation at a much later time after equilibrium has been reached.
Transcript of Diffusion and Osmosis Worksheet - Joseph Minato › cells › lessons › diffusion... · Diffusion...
Diffusion and Osmosis Worksheet, Page 1 of 3, 1/12/12
Name _______________ Class _________________ Date _________
Diffusion and Osmosis Worksheet
1. Write the definition of diffusion from memory. If you can’t, refer to the vocabulary sheet and practice until you can.
2. A membrane that allows all molecules in the solution to pass through is called what type of membrane?
3. A membrane that allows some molecules in the solution, but not others, to pass through is called what type of membrane?
4. A membrane that does not allow any molecules in the solution to pass through is called what type of membrane?
5. Look at the diagram below. Describe what will happen over time. Sketch the situation at a much later time after equilibrium has been reached.
Diffusion and Osmosis Worksheet, Page 2 of 3, 1/12/12
6. Consider the container below which has two separate compartments separated by a
permeable membrane. Describe what will happen over time. Sketch the situation at a much later time. What will be the concentrations of salt and sugar on each half of the container?
7. What is the percentage of water in each half at the beginning?
8. What is the percentage of water in each half at the end?
9. Did the water move across the membrane?
10. Write down the definition of osmosis from memory. If you can’t, refer to the vocabulary sheet and practice until you can.
Diffusion and Osmosis Worksheet, Page 3 of 3, 1/12/12
11. Consider the drawing. What will happen over time?
12. Consider the drawing. The membrane is permeable to salt and water, but not to sugar. a. What is this type of membrane called? b. In what direction will the salt move? c. In what direction with the sugar move? d. In what direction will the water move? e. In which compartment will the water rise?
This activity is modified from Biology as Scientific Inquiry, Unit II, Cells and Cell Processes, © 2010, Connection Point and Ron Thompson.
