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To function properly the cell must maintain a stable internal environment. Cell membranes are semipermeable, allowing only selective molecules to pass through. This helps cells to maintain chemical... | more...

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Channels: Cell Biology

Tags: Chemical equilibrium Cell Semipermeable membrane

Upload by: watchme on 15-10-2007.

Duration: 1m 28s

Dnatube: Sciencific and Medical video site.