what is the difference between porins and aquaporins? plz explain properly the difference in function too.
Any of a class of proteins whose molecules can form channels through cellular membranes.
Aquaporins are proteins embedded in the cell membrane that regulate the flow of water.
These are known as beta barrel protein.
They are “the plumbing system for cells.”
They act as a pore through which molecules can diffuse
Aquaporins are integral membrane proteins.
They allow passive diffusion of small metabolites like sugars, ions, and amino acids.
Aquaporins selectively conduct water molecules in and out of the cell, while preventing the passage of ions and other solutes.
They are present in the outer membrane of Gram-negative bacteria and some Gram-positive bacteria, mitochondria and the chloroplast.
They are present in cell membrane of plants and animals.