mitochondrial membrane


mi·to·chon·dri·al mem·brane

the double biomembrane surrounding the mitochondrion.

mi·to·chon·dri·al mem·brane

(mī'tō-kon'drē-ăl mem'brān) The mitochondrion has two membranes: the inner where the electron transport system is located and the outer, which acts as a gatekeeper and allows only certain molecules to enter.