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Phagocytosis (from Ancient Greek φαγεῖν (phagein) 'to eat' and κύτος (kytos) 'cell') is the process by which a cell uses its plasma membrane to engulf a large particle (≥ 0.5 μm), giving rise to an internal compartment called the phagosome.
Phagocytosis, or “cell eating”, is the process by which a cell engulfs a particle and digests it. The word phagocytosis comes from the Greek phago-, meaning “devouring”, and -cyte, meaning “cell”.
Phagocytosis, process by which certain living cells called phagocytes ingest or engulf other cells or particles. Phagocytes may be free-living one-celled organisms, such as amoebas, or body cells, such as white blood cells.
Specifically, phagocytosis is a form of endocytosis that only involves the transport of larger particles (greater than 0.5 micrometers), such as bacteria or cellular debris. Phagocytosis is also described as a destructive endocytosis due to the fate of particles being endocytosed.
Phagocytosis is a type of active transport mechanism as it requires the direct use of ATP to fuel the transport. Phagocytosis occurs in almost any tissue, most often in the bloodstream and interstitial space.
Phagocytosis can be divided into four main steps: (i) recognition of the target particle, (ii) signaling to activate the internalization machinery, (iii) phagosome formation, and (iv) phagolysosome maturation.
What is phagocytosis? Phagocytosis is a process by which cells ingest large particles (> 0.5 micrometers) into membrane-bound vesicles called phagosomes, which are then targeted to the lysosomes for enzymatic degradation. Phagocytosis is greatly enhanced by the opsonization of the bacteria.
Phagocytosis is a cellular process by which specialized leukocytes remove the corpses of dying cells and defend the body against infectious microbes. Siamon Gordon revisits this biological process and places it in the perspective of the phagocyte within its environment.
Phagocytosis is a cellular process for ingesting and eliminating particles larger than 0.5 μm in diameter, including microorganisms, foreign substances, and apoptotic cells. Phagocytosis is found in many types of cells and it is, in consequence an essential process for tissue homeostasis.
Phagocytosis is the mechanism by which relatively large (>0.5 μ m) particles, such as bacteria, dead cells, or (as here) polystyrene beads, are internalized (1–3).