In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.
Q: 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: passive
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Because the solute is moving down the concentration gradient, and no input of energy is required, facilitated diffusion is considered a(n) passive type of transport.