Lab 4 Diffusion and Osmosis BIO201L

”1. Compare and contrast diffusion and osmosis.” Diffusion occurs when molecules move from a higher concentration to a lower concentration until a stable state is established. The molecules are free to circulate until they reach a state of equilibrium. While in Osmosis, molecule movement isn't always free but rather selective due to the presence of a semipermeable membrane that allows only the most effective solvent molecules to pass through. ”2. What is the water potential of an op...