The Passive transport reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Passive transport

In cell biology, passive transport is a means of moving biochemicalss, and other atomic/molecular substances, across membranes. Unlike active transport, this process does not involve chemical energy.

Forms of Passive Transport

• Diffusion
  • Facilitated Diffusion
  • Osmosis

See also

• Active transport

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