question: What term describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell?
distractor3: endocytosis
distractor1: biosynthesis
distractor2: plasmosis
correct_answer: exocytosis
support: Exocytosis describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell, as shown in Figure below . Exocytosis occurs when a cell produces substances for export, such as a protein, or when the cell is getting rid of a waste product or a toxin. Newly made membrane proteins and membrane lipids are moved on top the plasma membrane by exocytosis. For a detailed animation of cellular secretion, see http://vcell. ndsu. edu/animations/constitutivesecretion/first. htm .