Components of Cell Membrane 1. Cut out each square 2. Tape to playing card (if time) 3. Shuffle deck 4. Students make triplets: Name, Structure, and Function A Phospholipid Phospholipid Bilayer Makes up most of the membrane Forms two layers – a Has two ends: One part is polar “Bilayer” One Hydrophilic One part is nonpolar One Hydrophobic Stuff flows through this tunnel Built – IN Goes INSIDE the membrane In the middle of the membrane Extrinsic Protein Cholesterol Lipid Protein External Intrinsic Protein On TOP of the membrane Only on One Side of the membrane Makes up most of the membrane ID Card for the Cell Lets cells identify one another Carbohydrate Carbohydrate Chain Keeps the membrane Wiggly, But not too Wiggly Protein Branch-­‐shaped strings of Honeycomb-­‐shaped grid hexagons of four hexagons BONUS BONUS Creates two zones: Holds messages and Watery zone other useful items so that and nearby cells can see Non-­‐watery zone Separates Inside / Outside the Cell BONUS Which three components do we see here? Lives inside the Lipid part of the membrane