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Glossary of Physiology Terms -
Permeable

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Permeable

Definition:
Permeable refers to a property of a membrane or channel pore in allowing substances to pass through. For example, the lipid bilayer portion of biological membranes is highly permeable to fat-soluble molecules, but is not permeable to ions and large polar molecules.

See also impermeable.

Related glossary terms/phrases:
Impermeable
Permeability
Permeant
Impermeant

See also:
Lipid Bilayer Permeability




Posted: Wednesday, January 1, 2014
Last updated: Wednesday, March 12, 2025
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