Diffusion and osmosis | Membranes and transport | Biology | Khan Academy

Learn about diffusion, osmosis, and concentration gradients and why these are important to cells. Watch the next lesson: https://www.khanacademy.org/science/biology/membranes-and-transport/passive-transport/v/passive-transport-and-selective-permeability?utm_source=YT&utm_medium=Desc&utm_campaign=biology Missed the previous lesson? https://www.khanacademy.org/science/biology/membranes-and-transport/diffusion-and-osmosis/v/hypotonic-isotonic-and-hypertonic-solutions-tonicity?utm_source=YT&utm_medium=Desc&utm_campaign=biology Biology on Khan Academy: Life is…