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Physics
Teacher Developed Classroom Tested

With this simple experiment, students investigate the effects of plasmolysis on plant cell structure by causing plasmolysis to occur in the cells of an onion. With the materials in this lab, the dramatic effect of varying osmotic conditions on plant structure is clearly visible. Explains the process responsible for causing a plant to wilt when it needs water and “come back to life” when it receives that water. Includes: 2 pkgs. petri dishes; sodium chloride, 58g; 6 forceps; 6 scalpels; 1 box microscope slides; 1 box coverslips; 45 pipets; 1 teacher’s guide; 1 set student study and analysis copymasters. Required but not supplied: microscope; onion.

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