Which statement correctly describes amphipathic (or amphiphilic) helices and sheets? helices are typically hydrophilic on one surface, whereas sheets usually have both hydrophilic and hydrophobic residues evenly distributed throughout their structure. sheets are typically hydrophilic on one surface, whereas helices usually have both hydrophilic and hydrophobic residues evenly distributed throughout their structure. amphipathic helices and sheets have hydrophilic and hydrophobic residues evenly distributed throughout their structure. amphipathic helices and sheets have predominantly hydrophilic (or hydrophobic) residues on one face.