Cell transport notes Take Cornell notes in your notebook Cell membranes and transport • L.T: • I can identify the structure of a cell membrane. • I can predict movement of substances through the cell membrane. • I can define diffusion and osmosis. • Notes = pre lab: – Take notes on the following slides for your pre-lab – No pre-lab…no lab! – Notebook check off when done- 10 pts Osmosis and Diffusion: • Osmosis: the movement of water through a membrane • Diffusion: the movement of any substance through a membrane – Particles ALWAYS move from high to low concentration Solutions: • Hypertonic solution: a solution with MANY particles • Hypotonic solution: a solution with FEWER particles • Isotonic solution: a solution with the SAME number of particles on each side. Movement of Particles: • Selectively permeable membrane: a membrane (like the cell) where some things can cross and some things cannot. – Particles ALWAYS move DOWN the concentration gradient (from high concentration to low) • Practice problems wksht: • Try to figure out the problems. • Put these in your notebook as part of your pre-lab