What are porins? What role do they play in diffusion? | NCERT solution | Class 11 Biology | Unit-11 Transport in Plants



Q.2:- What are porins? What role do they play in diffusion?

 

 

Answer:



The porins are proteins that form huge pores in the outer membranes of the plastids, mitochondria and some bacteria allowing molecules up to the size of small proteins to pass through. Thus they play an important role in facilitated diffusion.