What is the primary function of the plasma membrane in a cell?Energy productionWaste storageRegulation of cell transportDNA synthesis

Primary Function of the Plasma Membrane

The primary function of the plasma membrane, also known as the cell membrane, is to regulate the transport of substances in and out of the cell. It acts as a selective barrier, controlling the movement of ions, nutrients, and waste products, thereby maintaining the cell’s internal environment.

While energy production, waste storage, and DNA synthesis are important cellular functions, they are not primary roles of the plasma membrane. The plasma membrane ensures that essential molecules can enter the cell while preventing the entry of harmful substances, as well as facilitating communication and signaling between cells.

Final Answer

The correct answer is Regulation of cell transport.