In bacteria,the porins have the unique ability to transport

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Porins are transmembrane proteins present in the outer membrane of gram-negative bacteria. They are channels that selectively allow the passage of hydrophilic molecules of a particular size, usually less than 600-700 Da. The size exclusion limit of the channel is determined by the diameter of the channel and the presence of specific amino acid residues that line the channel wall. Therefore, porins can transport specific hydrophilic molecules based on their size and shape.

In Bacteria,the Porins Have the Unique Ability to Transport