Final answer:
The specialized functions of different membranes are determined by the proteins they contain. Membrane lipids are amphipathic molecules, composed of a hydrophilic portion and a hydrophobic portion.
Step-by-step explanation:
The specialized functions of different membranes are largely determined by the proteins they contain. Membrane lipids are amphipathic molecules, composed of a hydrophilic portion and a hydrophobic portion. All cell membranes have the same lipid bilayer structure.
Membranes function due to the proteins they contain, while their amphipathic lipids possess both hydrophilic and hydrophobic qualities, forming a consistent lipid bilayer structure across all cell membranes.
All cell membranes have the same lipid bilayer structure.