What is the difference between simple diffusion and active transport?

simple diffusion Simple Diffusion Across a Cell Membrane Diagram · As a result of diffusion, molecules or ions tend to reach an equilibrium situation ,

- Simple and facilitated diffusion are means of passive transport - Active transport uses energy to move substances against a gradient - Larger volumes are simple slots net Movement of waste materials · In animals, the removal of waste materials occurs via simple diffusion · In the liver, waste material, urea, is