Porins are proteins present on the outer membrane of cells and they form huge holes or pores in the outer membrane. It is present in plastids, mitochondria and some bacteria. Porins help in diffusion of substances passively, it allows small protein molecules to move across membranes.
Answered by Abhisek | 1 year agoDifferentiate between Apoplast and Symplast pathways of movement of water in plants
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