fix nitrogen

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• Nitrogen fixation — is the natural process, either biological or abiotic, by which nitrogen (N2) in the atmosphere is converted into ammonia (NH3).[1] This process is essential for life because fixed nitrogen is required to biosynthesize the basic building blocks of …   Wikipedia

• fix — fiks vt 1 a) to make firm, stable, or stationary b) to give a permanent or final form to: as (1) to change into a stable compound or available form <bacteria that fix nitrogen> (2) to kill, harden, and preserve for microscopic study 2) to… …   Medical dictionary

• Nitrogen cycle — Schematic representation of the flow of nitrogen through the environment. The importance of bacteria in the cycle is immediately recognized as being a key element in the cycle, providing different forms of nitrogen compounds assimilable by higher …   Wikipedia

• nitrogen fixation — The incorporation of atmospheric nitrogen into ammonia by various bacteria, catalysed by nitrogenase. This is an essential stage in the nitrogen cycle and is the ultimate source of all nitrogen in living organisms. In the sea, the main nitrogen… …   Dictionary of molecular biology

• fix — I. verb Etymology: Middle English, from Latin fixus, past participle of figere to fasten; akin to Lithuanian dygti to sprout, break through Date: 14th century transitive verb 1. a. to make firm, stable, or stationary b. to give a permanent or… …   New Collegiate Dictionary

• fix — [fiks] vt. fixed, fixing [ME fixen < fix, fixed < L fixus, pp. of figere, to fasten, attach: see FINISH] 1. a) to make firm, stable, or secure b) to fasten or attach firmly 2. to set firmly in the mind …   English World dictionary

• Fix — as a noun may refer to:* Fix (position), the result of position fixing in navigation * Fix (film), a feature film by Tao Ruspoli * FIX protocol, a communications protocol for financial information exchange * Fix , a single from BLACKstreet s 1996 …   Wikipedia

• nitrogen-fixing — adj capable of nitrogen fixation <nitrogen fixing bacteria> * * * ni·tro·gen fix·ing (niґtro jən fikґsing) accomplishing nitrogen fixation (see under fixation); said of certain bacteria …   Medical dictionary

• fix|a|tion — «fihk SAY shuhn», noun. 1. the act of fixing or condition of being fixed. 2. a treatment to prevent something from fading or otherwise changing: »the fixation of a photographic film. 3. a) the process of making stable, especially by decreasing or …   Useful english dictionary

• Nitrogen — carbon ← nitrogen → oxygen ↑ N ↓ P …   Wikipedia

• Nitrogen deficiency — A young cabbage plant exhibiting nitrogen deficiency. This is about nitrogen compounds in plant nutrition. For shortage of nitrogen compounds in human and animal nutrition, see protein deficiency. All plants require sufficient supplies of… …   Wikipedia