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Practice problem

Diffusion (Passive Transport) — Definition & Examples

By Gabi Slizewska
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A high concentration of ions on one side of a membrane, and low concentration on the other.

Image source: By NikNaks CC BY 2.0, via Wikimedia Commons

What is the name for the difference between concentrations of a substance across a space?

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Type a concept, like “slope” or “photosynthesis”.

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