Facilitated diffusion differs from active transport because facilitated diffusion: A. requires energy from ATP B. moves molecules from where they are in lower concentration to higher concentration C. moves molecules from where they are in higher concentration to lower concentration. D. involves ions & molecules that pass through membrane channels.
Option C.diffusion always refers to movement from excessive to low concentra- tion (without energy expenditure). Facilitated refers to the assistance provided by a transport molecule that is designed for the purpose.
