Question

write a note on facilitated diffusion​

Answer 1

Answer:

• Selective transport of large molecules across the cell membrane is called as facilitated diffusion.
• It takes place in presence of special proteins (porins) but does not involve expenditure of energy.
• Water soluble (hydrophilic) substances are transported by eight different aquaporins.

Answer 2

Answer:

Facilitated diffusion (also known as facilitated transport or passive-mediated transport) is the process of spontaneous passive transport (as opposed to active transport) of molecules or ions across a biological membrane via specific transmembrane integral proteins.