PhysiologyWeb Logo  Search
PhysiologyWeb Loading...

Glossary of Physiology Terms
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Search

There are 2 glossary search results for:   impermeable




Definition:
Not permeable. Not allowing the passage of substances. Impermeable refers to a property of a membrane or channel pore in preventing or restricting the passage of substances. For example, the lipid bilayer portion of biological membranes is highly impermeable to ions and large polar molecules.

See also permeable.

Related glossary terms/phrases:
Permeable
Permeability
Permeant
Impermeant

See also:
Lipid Bilayer Permeability



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: Sunday, March 31, 2013
Last updated: Friday, August 28, 2015