Question

What is the best definition of diffusion?

Random movement of molecules across a concentration gradient until the difference in concentration between two regions is near zero

A process in which molecules move across a semipermeable membrane until the number of molecules of water is nearly equal on both sides

Net movement of molecules across a permeable membrane bilayer that requires transport proteins

The exchange of solute molecules across a permeable membrane from areas of high concentration to areas of low concentration

Answer 1

The last option : The exchange of solute molecules across a permeable membrane from areas of high concentration to areas of low concentration