Question

As far as permeablity os concerned what is the status of outer and inner mitochondria membrane

Answer 1

The inner mitochondrial membrane(IMM) is the mitochondrial membrane which separates the mitochondrial matrix from the intermembrane space.

Cell biology

The mitochondrion

Components of a typical mitochondrion

1 Outer membrane

1.1 Porin

2 Intermembrane space

2.1 Intracristal space

2.2 Peripheral space

3 Lamella

3.1 Inner membrane   ◄ You are here

3.11 Inner boundary membrane

3.12 Cristal membrane

3.2 Matrix

3.3 Cristæ 

4 Mitochondrial DNA
5 Matrix granule
6 Ribosome
7 ATP synthase


Structure

The structure of the inner mitochondrial membrane is extensively folded and compartmentalized. The numerous invaginations of the membrane are called cristae, separated by crista junctions from the inner boundary membrane juxtaposed to the outer membrane. Cristae significantly increases the total membrane surface area compared to a smooth inner membrane and thereby the available working space.

The inner membrane creates two compartments. The region between the inner and outer membrane, called theintermembrane space which is largely continuous with the cytosol, and the more sequestered space