Outer and Inner Mitochondrial Membranes | Mitochondria

The upcoming discussion will update you about the differences between Outer and Inner Mitochondrial Membranes.

Difference # Outer Mitochondrial Membranes:

1. The membrane is smooth.

2. It bears porins or protein lined channels.

3. Enzymes are fewer.

4. Folding’s are absent.

5. Protein content is roughly equal to that of lipids.

6. Cholesterol and other lipids are present. Cardiolipins are absent.

7. Electron transport system (ETS) is absent.

8. It is permeable to most biochemical.

Difference # Inner Mitochondrial Membranes:

1. It contains a number of particles.

2. It bears carrier and other transport proteins.

3. It contains a number of enzymes.

4. Inner mitochondrial membrane develops a large number of infolding’s called cristae.

5. Protein content is quite high (up to 80%) while lipid content is low.

6. Cardiolipins occur.

7. ETS present in inner membrane.

8. It is selectively permeable.