Articles > Plasma membrane definition – quiz Plasma membrane definition – quiz Quiz Choose the best answer. 1. A biological membrane made up of a phospholipid bilayer with proteins and carbohydrates Cell wall Capsule Plasma membrane 2. The function of the plasma membrane that segregates the activities inside the cell from the extracellular fluid Physical barrier Selective permeability Cell signaling 3. The facilitation of communication from one cell to another Physical barrier Selective permeability Cell signaling 4. Only certain molecules can pass through the plasma membrane Physical barrier Selective permeability Cell signaling 5. Which of the following is an exocytosis? Macrophage engulfing a bacterial cell Proteins are released from the cell Cell drinking Send Your Results (Optional) Your Name To Email Time is Up!