Question

Because the solute is moving down the concentration gradient, and no input of energy is required, facilitated diffusion is considered what type of transport?

Answer 1

passive

Facilitated diffusion is the diffusion of solutes through integral membrane transport proteins. Facilitated diffusion is a type of passive transport . Even though facilitated diffusion involves transport proteins  and is essentially a transport process , it can still be considered passive transport because the solute is moving down the concentration gradient, and no input of energy is required. Facilitated diffusion utilizes proteins known as uniporters. A uniporter can be either a channel protein or a carrier protein.