A white blood cell engulfing a bacterial cell is an example of which cellular process?
A
Phagocytosis
B
Exocytosis
C
Facilitated diffusion
D
Pinocytosis
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1
Understand the context: A white blood cell engulfing a bacterial cell involves the cell taking in a large particle, which is a key feature of certain cellular processes.
Recall the definitions of the options: Phagocytosis is the process where cells engulf large particles or cells; Exocytosis is the process of expelling materials from the cell; Facilitated diffusion is passive transport of molecules across membranes via proteins; Pinocytosis is the ingestion of liquid into a cell by the budding of small vesicles from the cell membrane.
Identify the process that matches engulfing a bacterial cell: Since the white blood cell is taking in a large particle (the bacterium), this corresponds to phagocytosis.
Confirm that the process involves active transport and vesicle formation, which are characteristics of phagocytosis.
Conclude that the correct cellular process for a white blood cell engulfing a bacterial cell is phagocytosis.