Which term refers to the process of moving materials out of the cell?

The process of moving materials out of the cell is specifically known as exocytosis. This mechanism involves the transport of molecules in vesicles, which fuse with the cell membrane to release their contents into the external environment. Exocytosis is crucial for various cellular functions, including the secretion of hormones, neurotransmitters, and digestive enzymes.

Other terms mentioned, such as phagocytosis and pinocytosis, relate to different processes. Phagocytosis refers to the uptake of large particles or cells by the cell, while pinocytosis involves the ingestion of liquid and small solutes. Endocytosis is a broader term that encompasses all processes where the cell membrane engulfs material, including phagocytosis and pinocytosis, but does not pertain to the expulsion of materials from the cell. Thus, exocytosis is distinct in its role of exporting substances, making it the correct choice in this context.