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osmosis worksheet by 7GUlaI

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									Name ____________________________________________                                    Class: ______

                                             Osmosis Problems
                                                            Label each of the situations as hypotonic,
                                                            hypertonic, or isotonic:

                                                            1. Cell_________________________

                                                               Environment _________________




                                                                2.    Cell_________________________

                                                                      Environment __________________




                                                                3.    Cell_________________________

                                                                      Environment _________________




                                                             4. Cell_________________________

                                                                 Environment __________________




                                                               5. Cell_________________________

                                                                     Environment __________________




\\teaching\organisms macro to micro\osmosis worksheet.doc
Read the following questions carefully. Be sure to answer all parts of each question.

6. If a cell contains 85% water and is placed into a environment which is 50% water. Is the cell
hypotonic or hypertonic? In which direction will the water move, into the cell or out of the cell?




7. A cell contains 85% water and is placed into a solution which contains 90% water. Is the solution
in the environment hypotonic or hypertonic? In which direction will the water move?




8. If a cell which contains 90% water is placed into an isotonic solution, what percentage of the
solution is water?




9. A cell contains 95% water, the environment outside the cell contains 45% solutes. Is the cell in a
hypotonic or hypertonic environment?




10. A cell containing 25% solutes is placed into a solution which contains 35% solutes. Which
direction will the water move, into the cell or out of the cell?




11. A plant cell containing 95% water is placed into a 10% salt solution. Is the salt solution
hypotonic or hypertonic? Which direction will the water move?




12. If water leaves a cell when placed into a solution, is the cell hypotonic or hypertonic




\\teaching\organisms macro to micro\osmosis worksheet.doc

								
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