Facilitated transport (or facilitated diffusion) is defined as a mediated transport not requiring energy expenditure, as exemplified by placental glucose transfer, which is mediated by facilitative glucose transporters expressed in the syncytiotrophoblast MVM and BM.

What does facilitated transport require?

In facilitated transport, membrane proteins assist the diffusion of materials through the cell membrane. The protein binds the molecule being transported on the surface of the membrane, then passes it to interior proteins that typically form a channel or pore in the membrane.

Which type of transport requires energy?

Active transport requires energy for the process by transporting molecules against a concentration or electrochemical gradient.