Biology: Cell Transport and Simple Diffusion This kahoot addresses simple diffusion, passive transport, concentration gradients, and the plasma membrane of the cell membrane. 15 Questions by Science_by_Kahoot 02/13/2018 answers Play In this process, materials move from areas of high concentration to areas of low concentration: solubility osmosis diffusion permeability What term describes the region of space where the concentration of a substance changes? diffusion gradient concentration gradient solubility gradient simple gradient T/F: Material with a weaker concentration gradient result in faster diffusion. True False … and 12 more awesome questions! Check them out by clicking “Play”.