Autotrophy

Autotrophy

Autotrophy is the ability to be self-sustained by producing food from inorganic compounds. Some bacteria and some archaea have this ability. Inorganic compounds are oxidized directly without sunlight to yield energy. This metabolic mode also requires energy for CO2 reduction, like photosynthesis, but no lipid-mediated processes are involved. This metabolic mode has also been called chemotrophy, chemoautotrophy, or chemolithotrophy. Carbon autotrophy is the ability to assimilate CO2 from the air. Nitrogen autotrophy is the ability to assimilate nitrate or to do nitrogen fixation. Sulfur autrophy is the ability to assimilate sulfate (sulfur assimilation).

ee also

*Autotroph


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  • autotrophy — autotrofija statusas T sritis ekologija ir aplinkotyra apibrėžtis Mityba neorganinėmis medžiagomis. Būdinga augalams, dumbliams, kurie organines medžiagas gamina naudodami šviesos energiją (fotosintezė). Nitritbakterės, sierabakterės,… …   Ekologijos terminų aiškinamasis žodynas

  • autotrophy — noun see autotrophic …   New Collegiate Dictionary

  • autotrophy — See autotrophic. * * * …   Universalium

  • autotrophy — noun The synthesis of food from inorganic substances, using heat or light as a source of energy See Also: autotroph …   Wiktionary

  • autotrophy — The state of being self sustaining and able to produce food from inorganic compounds, with carbon dioxide serving as the sole source of carbon. carbon a. ability to assimilate CO2 from the air. nitrogen a. ability …   Medical dictionary

  • autotrophy — au·tot·ro·phy …   English syllables

  • autotrophy — noun see autotroph * * * autotrophˈism or auˈtotrophy noun • • • Main Entry: ↑autotrophic …   Useful english dictionary

  • protist — protistan /proh tis teuhn/, adj., n. protistic, adj. /proh tist/, n. any of various one celled organisms, classified in the kingdom Protista, that are either free living or aggregated into simple colonies and that have diverse reproductive and… …   Universalium

  • nutrition — nutritional, nutritionary, adj. nutritionally, adv. /nooh trish euhn, nyooh /, n. 1. the act or process of nourishing or of being nourished. 2. the science or study of, or a course of study in, nutrition, esp. of humans. 3. the process by which… …   Universalium

  • protozoan — /proh teuh zoh euhn/, n., pl. protozoans, (esp. collectively) protozoa / zoh euh/, adj. Biol. n. 1. any of a diverse group of eukaryotes, of the kingdom Protista, that are primarily unicellular, existing singly or aggregating into colonies, are… …   Universalium

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