Glossary of Physiology Terms

Impermeant

Not permeant. Incapable of passing through or penetrating. Impermeant refers to the inability of a substance (e.g., ion or molecule) to cross (i.e., permeate or penetrate) a biological membrane or channel pore. For example, it can be said that ions are membrane impermeant.

See also permeant.

Permeant
Permeability
Permeable
Impermeable

Lipid Bilayer Permeability

Permeant

Permeant refers to the ability of a substance (e.g., ion or molecule) to cross (i.e., permeate or penetrate) a biological membrane or channel pore. For example, it can be said that fat-soluble molecules are membrane permeant.

See also impermeant.

Impermeant
Permeability
Permeable
Impermeable

Lipid Bilayer Permeability