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AP Bio Students Test Diffusion Rates

Well that’s one way to diffuse a situation! AP Biology students learned about the effects surface area and volume have on diffusion rates in model cells during an experiment on Monday. They used agar, a jello-like substance, to test how fast vinegar diffused into it, which can be visualized by a change in color. Later they competed to see who could create the shape with the fastest ratio of diffusion rate to size.