ANATOMY

Detailed explanation-1: -Answer and Explanation: The correct answer is E) store cellular nutrients. Cell membrane proteins cannot store cellular nutrients as they are far too small and located in an inconvenient location to actually distribute these nutrients throughout the cell.

Detailed explanation-2: -Membrane proteins mediate processes that are fundamental for the flourishing of biological cells. Membrane-embedded transporters move ions and larger solutes across membranes, receptors mediate communication between the cell and its environment and membrane-embedded enzymes catalyze chemical reactions.

Detailed explanation-3: -Answer and Explanation: Among the options, D. produce energy is not a function of membrane proteins. All the other options are primary functions of membrane proteins.

Detailed explanation-4: -Membrane proteins can serve a variety of key functions: Junctions – Serve to connect and join two cells together. Enzymes – Fixing to membranes localises metabolic pathways. Transport – Responsible for facilitated diffusion and active transport.