Solution:
Similarities:
1. Facilitated diffusion and active transport are two methods involved in the transport of molecules across the cell membrane.
2. In both facilitated diffusion and active transport, transmembrane proteins participate in the passage of molecules across the plasma membrane.
Differences:
1. The facilitated diffusion is the process when the diffusion of molecules across the plasma membrane occurs from a higher concentration to a lower concentration while active transport occurs against the concentration gradient.
2. The facilitated diffusion does not require energy to transport molecules across the membrane. while in the active transport energy is required to transport molecules across the membrane.