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Diffusion through a Membrane Simulation
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Cell
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Starch Starch Molecules
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Starch Glucose Glucose Molecules
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Starch Glucose Iodine Iodine Molecules
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Starch Give it some time……. Glucose Iodine
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Starch Glucose Iodine
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Starch Glucose Iodine
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Starch Glucose Iodine
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Starch Glucose Iodine
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Starch Glucose Iodine
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Starch Glucose Iodine
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Starch Glucose Iodine
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Starch Glucose Iodine
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Starch Times Up! Glucose Iodine
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Starch Glucose Iodine
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What Diffused in and out the Cell?
Starch Glucose Iodine
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Starch Glucose Iodine
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Starch Diffused IN Glucose Iodine Water
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Starch Glucose Iodine
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Starch Diffused OUT Glucose Iodine
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Starch Glucose Iodine
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Starch Didn’t Diffuse at All Glucose Iodine
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Starch Glucose Iodine
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Lets look at the epidermis of a Red Onion….Up Close.
What about a real Cell? Lets look at the epidermis of a Red Onion….Up Close.
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If we make a wet mount slide of a Red Onion Epidermis it would look like this:
These cells are HYPOTONIC (swollen like a hippo) because there is so much water around them
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If salt water is added, there will be more salt outside the cell than in.
The cell loses water through osmosis as it tries to create a ratio of water:salt inside the cell that matches the outside
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This Process is Called Plasmolysis
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What if we add water without salt?
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