What term describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell?

What term describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell?

• Correct Answer: endocytosis
• biosynthesis
• plasmosis
• exocytosis

Explanation: 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 .

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