Mitochondria, protons accumulate in the : (2011 Mains) (a) Outer membrane (b) Inner membrane (c) Inner membrane space (d) Matrix
Option C.In mitochondria, protons accumulate in inter membrane space. Inter membrane space is space between the inner and outer mitochondrial membranes of the mitochondria. The protons are transported from the matrix to the inter membrane space in order to produce proton motive force.