Which Statement Describes How the Plasma Membrane is Used in Communication

Question

Which statement describes how the plasma membrane is used in communication and sensitivity?
A) It serves as a storage site for large amounts of proteins for future use by the cell.
B) It effectively isolates the cytoplasm from the surrounding fluid environment.
C) It serves as an impermeable membrane.
D) It acts as a site for the attachment of glycoproteins and glycolipids, which act as receptors for molecules present in the extracellular fluid.
E) It provides for specialized connections between neighboring cells, giving tissues a stable structure.

Accepted Answer

The plasma membrane acts as a site for the attachment of glycoproteins and glycolipids, which act as receptors for molecules present in the extracellular fluid. This allows the cell to communicate with its environment and respond to changes in external conditions. For example, receptors on the surface of nerve cells allow them to respond to neurotransmitters released by other cells.