define Facilated diffusion ???
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=>>Facilitated diffusion is the passive movement of molecules across the cell membrane via the aid of a membrane protein
It is utilised by molecules that are unable to freely cross the phospholipid bilayer (e.g. large, polar molecules and ions)
This process is mediated by two distinct types of transport proteins – channel proteins and carrier proteins
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first of all it is also known as facilitated transport or passive-mediated transport)
.it is a spontaneous passive transport of molecules or ions through biological membrane via some special transmembrane integral proteins.
it doesn't depend on ATP but on molecular binding between the cargo and the membrane-embedded channel or carrier protein.
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