Osmosis in Non-living Tissue

Activity: Demonstrating osmosis in non-living tissues

Material: Retort stand and clamp, thistle funnel, parchment paper, concentrated sugar solution, distilled water, beaker.

Method:

  1. Fit a piece of parchment paper over the mouth of a thistle funnel.

  2. Invert the funnel: the covered mouth will be at the bottom and the funnel is filled with concentrated sugar solution and is level with ink

  3. A beaker is filled with water and then the funnel with the concentrated sugar solution is immersed into the beaker containing the water.

  4. Clamp the tube of the thistle-funnel in a vertical position.

  5. Leave the setup for about 6 hours

Observation: The level of the sugar solution in the thistle funnel will rise. The water in the beaker will reduce


Conclusion: the water molecule in the beaker is high concentration of water molecules. The water will move from the beaker into the thistle funnel with the parchment paper serving as a semi-permeable membrane



Diagram

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