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. It is one type of endocytosis. A cell that performs phagocytosis is called a phagocyte.

phagocytosis, process by which certain living cells called phagocytes ingest or engulf other cells or particles. The phagocyte may be a free-living one-celled organism, such as an amoeba, or one of the body cells, such as a white blood cell. In some forms of animal life, such as amoebas and sponges, phagocytosis is a means of feeding.

2017年4月4日 · 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”. Cells in the immune systems of organisms use phagocytosis to devour bodily intruders such as bacteria, and they also engulf and get rid of cell debris.

2023年7月31日 · In phagocytosis, the plasma membrane of a cell is directed by cytoskeletal filaments to form pseudopodia (fake arms) that act to engulf a particle and bring it into the cell from the extracellular matrix.

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 …

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.

2023年8月18日 · Phagocytosis is a basic physiological cellular process wherein a cell ingests a solid particle having a diameter >0.5 µm. In unicellular organisms, it is a feeding mechanism to acquire nutrition while in multicellular organisms, it is used as a defense mechanism to remove pathogens from the body.

2023年2月2日 · 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.

2016年3月15日 · Phagocytosis, defined as the cellular uptake of particulates (>0.5 μ) within a plasma-membrane envelope, is closely related to and partly overlaps the endocytosis of soluble ligands by fluid-phase macropinocytic and receptor pathways.

2022年7月10日 · Phagocytosis is a type of endocytosis whereby a cell engulfs a particle in an internal compartment- the phagosome. The cell rearranges its membrane to surround and internalise the target particle. Phagocytosis is a major mechanism for detecting and removing potentially pathogenic material.