Passive transporter

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Passive transporter, is a protein intergral within the membrane that allows ions or molecules to pass through the membrane without using energy/ATP. The molecule or ion will move down it's concentration gradient by facillitated diffusion. Each transporter is usually only specific to one molecule or a group of molecules with similar structures[1].

References

  1. ↑ B.Alberts et al. (2008) Molecular Biology of the Cell, 5th Edition, NewYork:Garland Science, Taylor & Francis Group, Chapter 11, Page 652
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