Movement in and out of cells: Osmosis, Difussion and Active Transport

Our Biology teacher, Magdalena Ravagnan, asked us to perform an experiment in which we were given two potato strips, one that had to be soaked in distilled water and another one in a concentrated solution, both left for 24 hours. Comparing those two and another one that had been left intact (without being soaked).This woud show and represent the movement in and out of the cells. This was the task  .

This are the results.

Potatoe in distilled water: This was the stiffest and least flexible potato because it absorbed water, therefore it swelled and became firm.

Natural potato: This potato was less stiff but more flexible than the one soaked in distilled water.

Potato in concentrated solution: This was the least stiff one of all and the most flexible.



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