Question

Mitochondrial porins are located in

• A. Outer membrane
• B. Inner membrane
• C. Inter-membrane space
• D. Both outer and inner membrane

Answer 1

The correct option is A Outer membrane

• The mitochondria is a double-membraned cell organelle, known as the powerhouse of the cell which is present in all eukaryotic cells.
  
• It has an outer membrane and an inner membrane.
• The outer mitochondrial membranes have porins which are beta-barrel proteins that act as a pore through which diffusion of molecules takes place.
• So, the correct answer is 'Outer membrane'.