What term is used for the process known as "cell eating"?

The term "cell eating" refers to phagocytosis, which is a process through which certain cells, known as phagocytes, engulf large particles, such as bacteria or dead cell debris. During phagocytosis, the cell membrane extends around the particle, ultimately enclosing it in a membrane-bound vesicle called a phagosome. This phagosome then typically fuses with a lysosome, where the engulfed material is digested and broken down by enzymes.

In contrast, pinocytosis is often referred to as "cell drinking," where cells ingest smaller particles and fluids. Exocytosis is the process by which cells expel materials outside through vesicles fusion with the plasma membrane. Importin is a protein involved in the transport of molecules into the nucleus, and it is not directly related to the processes of eating or engulfing substances by a cell. Therefore, phagocytosis is distinctly recognized for the uptake of larger particulate matter, which is the essence of "cell eating."