Diffusion

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diffusion

movement from a higher concentration to a lower concentration
hypertonic solution
- above normal concentration
- cell has higher concentration than outside of the cell so water is let out of the cell
- causes the cell to shrink
hypotonic solution/ hippotonic solution
- below normal solution amount
- cell has lower concentration than outside the cell so movement into the cell causes the cell to swell
passive transport

doesn't need ATP
active transport

needs ATP