vacuole$89330$ - meaning and definition. What is vacuole$89330$
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What (who) is vacuole$89330$ - definition

MEMBRANOUS VESICLE FORMED AROUND A PARTICLE ENGULFED BY A PHAGOCYTE VIA PHAGOCYTOSIS
Phagosomes; Phagocytic vacuole; Phagosomal; Phagosomal vacuole
  •  Phagocytosis of a bacterium, showing the formation of phagosome and phagolysosome
  • Phagocytosis -- amoeba

Food vacuole         
VACUOLE WITHIN A PARASITE USED FOR DIGESTION OF THE HOST CELL CYTOPLASM. AN EXAMPLE OF THIS COMPONENT IS FOUND IN THE APICOMPLEXA.
Digestive vacuole
The food vacuole, or digestive vacuole, is an organelle found in simple eukaryotes such as protists. This organelle is essentially a lysosome.
Vacuolation         
CLOSED STRUCTURE IN EUKARYOTIC CELLS, COMPLETELY SURROUNDED BY UNIT MEMBRANE AND CONTAINS LIQUID MATERIAL; CELLS MAY CONTAIN ONE OR MORE VACUOLES, POSSIBLY WITH DIFFERENT FUNCTIONS
Tonoplast; Cell sap; Central vacuole; Vacuoles; Vacuola; Vacoule; Vacuolar; Vacuolation; Vacuolisation; Cell vacuole; Vacoules
·noun Formation into, or multiplication of, vacuoles.
Vacuole         
CLOSED STRUCTURE IN EUKARYOTIC CELLS, COMPLETELY SURROUNDED BY UNIT MEMBRANE AND CONTAINS LIQUID MATERIAL; CELLS MAY CONTAIN ONE OR MORE VACUOLES, POSSIBLY WITH DIFFERENT FUNCTIONS
Tonoplast; Cell sap; Central vacuole; Vacuoles; Vacuola; Vacoule; Vacuolar; Vacuolation; Vacuolisation; Cell vacuole; Vacoules
·noun A small air cell, or globular space, in the interior of organic cells, either containing air, or a pellucid watery liquid, or some special chemical secretions of the cell protoplasm.

Wikipedia

Phagosome

In cell biology, a phagosome is a vesicle formed around a particle engulfed by a phagocyte via phagocytosis. Professional phagocytes include macrophages, neutrophils, and dendritic cells (DCs).

A phagosome is formed by the fusion of the cell membrane around a microorganism, a senescent cell or an apoptotic cell. Phagosomes have membrane-bound proteins to recruit and fuse with lysosomes to form mature phagolysosomes. The lysosomes contain hydrolytic enzymes and reactive oxygen species (ROS) which kill and digest the pathogens. Phagosomes can also form in non-professional phagocytes, but they can only engulf a smaller range of particles, and do not contain ROS. The useful materials (e.g. amino acids) from the digested particles are moved into the cytosol, and waste is removed by exocytosis. Phagosome formation is crucial for tissue homeostasis and both innate and adaptive host defense against pathogens.

However, some bacteria can exploit phagocytosis as an invasion strategy. They either reproduce inside of the phagolysosome (e.g. Coxiella spp.) or escape into the cytoplasm before the phagosome fuses with the lysosome (e.g. Rickettsia spp.). Many Mycobacteria, including Mycobacterium tuberculosis and Mycobacterium avium paratuberculosis, can manipulate the host macrophage to prevent lysosomes from fusing with phagosomes and creating mature phagolysosomes. Such incomplete maturation of the phagosome maintains an environment favorable to the pathogens inside it.