cytoplasm


cytoplasm
cytoplasmic, adj.cytoplasmically, adv.
/suy"teuh plaz'euhm/, n. Cell Biol.
the cell substance between the cell membrane and the nucleus, containing the cytosol, organelles, cytoskeleton, and various particles. See diag. under cell.
[1870-75; CYTO- + -PLASM]

* * *

Portion of a eukaryotic cell outside the nucleus.

The cytoplasm contains all the organelles (see eukaryote). The organelles include the mitochondria, chloroplasts, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. The cytoplasm also contains the cytoskeleton and the cytosol (the fluid mass that surrounds the various organelles).

* * *

 the semifluid substance of a cell that is external to the nuclear membrane and internal to the cellular membrane, sometimes described as the nonnuclear content of protoplasm. In eukaryotes (eukaryote) (i.e., cells having a nucleus), the cytoplasm contains all of the organelles (organelle). Among such organelles are the mitochondria (mitochondrion), which are the sites of energy production through ATP (adenosine triphosphate) synthesis; the endoplasmic reticulum, the site of lipid and protein synthesis; the Golgi apparatus, the site where proteins are modified, packaged, and sorted in preparation for transport to their cellular destinations; lysosomes (lysosome) and peroxisomes (peroxisome), sacs of digestive enzymes that carry out the intracellular digestion of macromolecules such as lipids and proteins; the cytoskeleton, a network of protein fibres that give shape and support to the cell; and cytosol, the fluid mass that surrounds the various organelles.

* * *


Universalium. 2010.

Look at other dictionaries:

  • Cytoplasm — Cy to*plasm (s? t? pl?z m), n. [Gr. ky tos hollow vessel + ???? a mold.] (Biol.) The substance of the body of a cell, as distinguished from the {karyoplasma}, or substance of the nucleus. {Cy to*plas mic} ( pl?z m?k), a. [1913 Webster] || …   The Collaborative International Dictionary of English

  • cytoplasm — cytoplasm. См. цитоплазма. (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.

  • cytoplasm — 1874, from CYTO (Cf. cyto ) + plasm (see PLASMA (Cf. plasma)) …   Etymology dictionary

  • cytoplasm — ► NOUN Biology ▪ the material or protoplasm within a living cell, excluding the nucleus. DERIVATIVES cytoplasmic adjective …   English terms dictionary

  • cytoplasm — [sīt′ō plaz΄əm] n. [ CYTO + PLASM] the protoplasm of a cell, outside the nucleus: see CELL cytoplasmic adj …   English World dictionary

  • Cytoplasm — Schematic showing the cytoplasm, with major components of a typical animal cell (organelles): (3) ribosomes (indicated by purple dots) (4) vesicle (5) rough endoplasmic reticulum (ER) (6) Golgi apparatus (7) cytoskeleton (8) smooth ER (9)… …   Wikipedia

  • Cytoplasm — All of the substance of a cell outside of the nucleus. The cytoplasm contains a number of different types organelles such as the mitochondria. Most, but not all, cells have cytoplasm. Mature sperm are essentially devoid of cytoplasm. The word… …   Medical dictionary

  • cytoplasm — citoplazma statusas T sritis augalininkystė apibrėžtis Ląstelės medžiaga, esanti aplink branduolį. atitikmenys: angl. cytoplasm rus. цитоплазма …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • cytoplasm — The fluid inside a cell but outside the cell s nucleus. Most chemical reactions in a cell take place in the cytoplasm …   English dictionary of cancer terms

  • cytoplasm — noun Etymology: International Scientific Vocabulary Date: 1874 the organized complex of inorganic and organic substances external to the nuclear membrane of a cell and including the cytosol and membrane bound organelles (as mitochondria or… …   New Collegiate Dictionary


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.