Question

which of the following are the primary components of the cell membrane and contribute to its semi - permeability property? cholesterol molecules. protein molecules. phospholipid molecules. enzymes. sugar molecules attached to a protein. clear selection

Explanation:

The cell membrane's fundamental structure is a phospholipid bilayer. This bilayer's hydrophobic interior and hydrophilic exterior directly creates the semi-permeable nature, allowing small nonpolar molecules to pass while blocking most polar/charged substances. Other listed components are secondary or have specialized roles, not the primary structural and semi-permeability-driving elements.

Answer:

phospholipid molecules.