Hydrophilic region Fatty enlarged schematic view acids of a single unit Hydrophobic region membrane. Glycerol Phosphate electron micrograph of photosynthetic membrane stacks derived from the cytoplamic membrane in a phototrophic bacterium The cytoplasmic membrane. JouueM 0enlarged schematic view of a single unit membrane. electron micrograph of photosynthetic membrane stacks derived from the cytoplamic membrane in a phototrophic bacterium The cytoplasmic membrane