potassium pump

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• Potassium in biology — Potassium is the an essential mineral macronutrient and is the main intracellular ion for all types of cells. It is important in maintaining fluid and electrolyte balance in the body. Function in the Body Potassium is the major cation (positive… …   Wikipedia

• sodium-potassium pump — ▪ biology       in cellular physiology, a protein that has been identified in many cells that maintains the internal concentration of potassium ions [K+] higher than that in the surrounding medium (blood, body fluid, water) and maintains the… …   Universalium

• Potassium — The major positive ion (cation) found inside of cells. The chemical notation for potassium is K+. The proper level of potassium is essential for normal cell function. An abnormal increase of potassium (hyperkalemia) or decrease of potassium… …   Medical dictionary

• Potassium — (pronEng|pəˈtæsiəm) is a chemical element. It has the symbol K ( la. kalium, from ar. qalīy), atomic number 19, and atomic mass 39.0983. The name potassium comes from the word potash , as potassium was first isolated from potash. Potassium is a… …   Wikipedia

• Potassium titanyl phosphate — (KTiOPO4) or KTP is a nonlinear optical material which is commonly used for frequency doubling diode pumped solid state lasers such as and other neodymium doped lasers. The material has a relatively high optical damage threshold ( 15 J/cm²), a… …   Wikipedia

• Potassium deficiency (plants) — Potassium deficiency, also known as potash deficiency, is a plant disorder that is most common on light, sandy soils, as well as chalky or peaty soils with a low clay content. It is also found on heavy clays with a poor structure.Plants require… …   Wikipedia

• pump — 1. An apparatus for forcing a gas or liquid from or to any part. 2. Any mechanism for using metabolic energy to accomplish active transport of a substance. breast p. a suction instrument for withdra …   Medical dictionary

• pump — pump1 pumpable, adj. pumpless, adj. pumplike, adj. /pump/, n. 1. an apparatus or machine for raising, driving, exhausting, or compressing fluids or gases by means of a piston, plunger, or set of rotating vanes. 2. Engin., Building Trades. a shore …   Universalium

• pump — I [[t]pʌmp[/t]] n. 1) an apparatus or machine for raising, driving, exhausting, or compressing fluids or gases by means of a piston, plunger, or set of rotating vanes 2) zool. anat. inf the heart 3) cbl a biological system that supplies energy… …   From formal English to slang

• Pompe Sodium/Potassium — La pompe sodium/potassium ou Na+/K+ ATP ase est une enzyme transmembranaire dont l activité enzymatique utilise l énergie issue de la dégradation de l ATP en ADP et phosphore inorganique pour transporter des ions potassium et sodium contre leur… …   Wikipédia en Français

• Pompe Sodium Potassium — Pompe sodium/potassium La pompe sodium/potassium ou Na+/K+ ATP ase est une enzyme transmembranaire dont l activité enzymatique utilise l énergie issue de la dégradation de l ATP en ADP et phosphore inorganique pour transporter des ions potassium… …   Wikipédia en Français