Osmosis Lab - Dustin Lee Biology Block C Diffusion and...

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Dustin Lee Biology Block C Diffusion and Osmosis Lab Introduction : In this lab we explored the properties of diffusion and osmosis with four labs. We learned about plasmolysis in an Elodea Cell, we observed diffusion of iodine, the rate of diffusion, and osmosis in potato cell. Station I Analysis Questions 1. The elodea placed in the salt water solution was put in a hypertonic solution. Because it was in a hypertonic solution, the water from the elodea moved to the salt solution. So the elodea’s organelles started to go towards the center of his cell because there was more water towards the center of the cell. The elodea placed in the pure water solution was put in a hypotonic solution. Generally there was no change in the elodea cell. 2. Because the elodea cell placed in the salt water solution shriveled up, it means that there is a less concentration outside the cell. So, through osmosis, water left the cell to even out the concentrations of the salt water solution and the cell. With the elodea cell placed in the pure water solution, water performed osmosis into the cell because the concentration of pure water is 100% water. 3. After the ice melts from the salt, it the melted water and salt would make a salt water solution. The plants on the roadside will have a more concentration of water than the salt water solution. So in terms of osmosis, the water would
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Osmosis Lab - Dustin Lee Biology Block C Diffusion and...

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