Objective: What is the role of a semipermeable membrane and what are the types of transport across the membrane?

 Take the page and divide it into 6 equal boxes  Number the boxes Notes: Cell Membrane and Transport

FFFFunction: regulates what enters and leaves the cell SSSStructure: LLLLipid bilayer PPPProteins = form gates, channels or pumps that lets things in or out

 Semi-permeable = only allows certain molecules to pass through.  Molecules cannot pass through it they are too big or charged.

 Passive Transport = pass through membrane without energy  Active Transport = energy is used to pass through

Diffusion: molecules move from high concentration to low concentration Osmosis: the diffusion of water Facilitated Diffusion: protein helps molecules move through the membrane

 Cell’s energy is used to move molecules from low to high concentration

Instructions: - Write a 3-4 sentence summarize what you new things you learned today - Number and highlight each period - Be specific!!! (Example: “I learned about cells” is not specific, what did you learn about cells?)