a particle in the cytoplasm of cells that contains enzymes responsible for breaking down substances in the cell and is bounded by a single membrane. Lysosomes are especially abundant in liver and kidney cells. Foreign particles (e.g. bacteria) taken into the cell are broken down by the enzymes of the lysosomes. When the cell dies, these enzymes are released to break down the cell's components.

The new mediacal dictionary. 2014.

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  • lysosome — [ lizozom ] n. m. • 1968; du gr. lusis (cf. lyse) et sôma « corps » ♦ Biol. Vésicule cytoplasmique des eucaryotes contenant un grand nombre d enzymes qui dégradent la plupart des macromolécules biologiques. Adj. LYSOSOMIAL, IALE, IAUX . ●… …   Encyclopédie Universelle

  • lysosome — lysosome. См. лизосома. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • lysosome — 1955, from LYSO (Cf. lyso ) + some, from Gk. soma body …   Etymology dictionary

  • lysosome — [lī′sə sōm΄] n. [lyso , pertaining to dissolving < Gr lysis (see LYSIS) + SOME3] a particle in the cytoplasm of cells containing a number of digestive enzymes capable of breaking down most of the constituents of living matter: see CELL… …   English World dictionary

  • Lysosome — Les principaux organites d une cellule. Les lysosomes sont légendés en haut à gauche …   Wikipédia en Français

  • Lysosome — s: (1) nucleolus (2) nucleus (3) ribosomes (little dots) (4) vesicle (5) rough endoplasmic reticulum (ER) (6) Golgi apparatus (7) Cytoskeleton (8) smooth endoplasmic reticulum (9) mitochondria (10) vacuole (11) cytoplasm (12) lysosome (13)… …   Wikipedia

  • lysosome — lysosomal, adj. /luy seuh sohm /, n. Cell Biol. a cell organelle containing enzymes that digest particles and that disintegrate the cell after its death. See diag. under cell. [1950 55; LYSO + SOME3] * * * Membrane enclosed organelle found in all …   Universalium

  • Lysosome — An organelle (a little organ) within a cell containing enzymes that degrade macromolecules (large molecules) and other materials (such as bacteria) taken up by a cell during the process of endocytosis. In endocytosis, macromolecules and particles …   Medical dictionary

  • lysosome — noun Etymology: International Scientific Vocabulary lys + 3 some Date: 1955 a saclike cellular organelle that contains various hydrolytic enzymes see cell illustration • lysosomal adjective …   New Collegiate Dictionary

  • lysosome — (li so sōm) A spherical membranous eucaryotic organelle that contains hydrolytic enzymes and is responsible for the intracellular digestion of substances …   Dictionary of microbiology

  • lysosome — Membrane bounded cytoplasmic organelle containing a variety of hydrolytic enzymes that can be released into a phagosome or to the exterior. Release of lysosomal enzymes in a dead cell leads to autolysis (and is the reason for hanging game, to… …   Dictionary of molecular biology