Question

what is porins ? what role do they play in diffusion

Answer 1

Porins are types of proteins which form pores of large sizes in the outer membranes of plastids such as chloroplast, mitochondria and the membranes in bacteria. They help in facilitating the passive transport of small-sized protein molecules.

Answer 2

HEYA GM
PORINS:- These are the small Minute pores which help in Diffusion of organelle Material easily from both the ways

- These pores are Selectively permeable

ex:- Mitochondria have it on Outer surface
chloroplast have it on inner surface
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