Facilitated diffusion can be described as the favorable movement of one solute down its concentration gradient being coupled with the unfavorable movement of a second solute up its concentration gradient. true or false?

False.

Explanation:

In Facilitated Diffusion, which is a type of passive transport, the solute moves down its concentration gradient passing through transmembrane proteins that can be either channels or carriers. The transport described in the question is coupled transport and is a kind of active transport.