AP Biology 2007-2008 The Cell Membrane AP Biology 2 The Structure of A Cell ALL cells have a cell membrane A thin, flexible barrier around the cell.
AP Biology 2007-2008 The Cell Membrane AP Biology Phospholipids Fatty acid Phosphate Phosphate head hydrophilic Fatty acid tails hydrophobic.
AP Biology 2007-2008 Movement across the Cell Membrane.
