INTRACELLULAR LIQUID

From Big Medical Encyclopedia

INTRACELLULAR LIQUID (synonym cellular juice) — liquid phase of the main substance of cytoplasm (cytoplasmatic matrix or hyaloplasma) and kernel («nuclear sap»).

Filling space between structural components cells (see), Century. serves that as internal environment, through to-ruyu processes of exchange are carried out and the cellular homeostasis at interaction of a cell with the environment is supported. Century. fills also cavities of a cytoplasmic reticulum, tanks of a lamellar complex of Golgi and vacuoles of animal and plant cells.

Century. receive by homogenization of cells and fractional centrifuging of the received homogenate; nadosadochny liquid is identified at the same time since Century.

In structure of Century. water, inorganic matters, soluble gases, intermediate products of metabolism of sugars, lipids, proteins and nucleinic to - t, free macromolecules (proteins, RNA), and also a number of enzymes enter. In Century. the enzymes activating amino acids, enzymes of synthesis of fatty acids and glycoclastic activity are preferential concentrated t-RNK. Concentration of hydrogen ions of Century. apprx. 7,0. Idea of chemical structure of Century. gives also the analysis of vacuolar sap of plant cells, to-rogo water, inorganic salts (phosphates, nitrates, chlorides, sulfates, etc.), organic compounds (proteins, carbohydrates, organic to - you, alkaloids, glucosides, etc.) and pigments (flavones, anthocyans) are a part; pH of vacuolar sap fluctuates within 2,0 — 5,0.

Number of Century. depends on a condition of a dynamic equilibrium between processes of gelation and fluidifying of the main substance of cytoplasm, a cut in turn depends on type of a cell, a stage of its development, a functional state and pathological changes in a cell (vacuolation, etc.).

See also Cytoplasm .


Bibliography: To Giza A. Fiziologiya of a cell, the lane with English, M., 1959; Cytology of enzymes, the lane with English, under the editorship of A. A. Pokrovsky, page 351, M., 1971, bibliogr.

I. A. Alov.

Яндекс.Метрика