Question

What differences exist in structure and function between the outer and inner membrane of mitochondria?

Answer 1

Difference in structure between outer membrane and inner membrane of mitochondria

Outer membrane	Inner membrane
It encloses the entire organelle and is continuous. It is smaller than the inner membrane	It is thrown into many folds called cristae. It is 5 times larger than the outer membrane
It has many integral proteins called porins	It has 5 types of proteins with 5 different functions. It does not contain porins.
It has protein to phospholipids ratio of 1:1	It has protein to phospholipids ratio of 3:1

Difference in Function between outer membrane and inner membrane of mitochondria

Outer membrane	Inner membrane
Diffusion of ions, nutrient molecules, ATP,ADP	It is the site of ATP synthesis.