The cell membrane surrounds the cytoplasm of living cells physically separating the intracellular components from. However unlike prokaryotic cells eukaryotic cells have. Cell Membrane Definition Examples Diagrams Cuticle Secreted covering at a body surface. . Theyre fluid flexible and can self-repair. What part is the hydrophobic. Organelles such as mitochondria the endoplasmic. Proteins and lipids are the major components of the cell membrane. Another is that the membrane of the cell which would be the plasma membrane will have. What part is the Hydrophilic. Despite their apparent differences there are numerous shared characteristics of living cells. Cells exclude some substances take in others and excrete still others all in controlled quantities. It protects the integrity of the cell. Also eukaryotic cells are characterized by the presence of membrane-bound organelles in the cytoplasm....