Question

functions of membrane proteins include all of the following except ______ . a carriers b cell identification c stability d receptors e channels

Explanation:

• Membrane proteins have several functions: Carrier proteins (A) transport substances, cell - surface proteins for cell identification (B) help in recognizing cells, receptor proteins (D) bind to signaling molecules, and channel proteins (E) allow passage of ions/molecules.
• The stability of the cell membrane is mainly maintained by the lipid bilayer and cholesterol, not a primary function of membrane proteins. So the function that is not of membrane proteins is stability.

Answer:

C. stability