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单词 autotroph
释义

autotroph


au·to·troph

A0540600 (ô′tə-trŏf′, -trōf′)n. An organism capable of synthesizing its own food from inorganic substances, using light or chemical energy. Green plants, algae, and certain bacteria are autotrophs.
au′to·troph′ic adj.au′to·troph′i·cal·ly adv.au·tot′ro·phy (ô-tŏt′rə-fē) n.

au•to•troph

(ˈɔ təˌtrɒf, -ˌtroʊf)

n. any organism capable of self-nourishment by using inorganic materials as a source of nutrients and using photosynthesis or chemosynthesis as a source of energy, as most plants and certain bacteria and protists. Compare heterotroph. [1935–40; see auto-, troph] au`to•troph′ic, adj.

autotroph

Organism (e.g. plant) that can make its own food from simple inorganic molecules.
Thesaurus
Noun1.autotroph - plant capable of synthesizing its own food from simple organic substancesautotroph - plant capable of synthesizing its own food from simple organic substancesautophyte, autophytic plant, autotrophic organismplant life, flora, plant - (botany) a living organism lacking the power of locomotion
Translations
autótrofo

autotroph


autotroph

(ôt`ətrōf'), in biology, an organism capable of synthesizing its own organic substances from inorganic compounds. Autotrophs produce their own sugars, lipids, and amino acids using carbon dioxide as a source of carbon, and ammonia or nitrates as a source of nitrogen. Organisms that use light for the energy to synthesize organic compounds are called photosynthetic autotrophs; organisms that oxidize such compounds as hydrogen sulfide (H2S) to obtain energy are called chemosynthetic autotrophs, or chemotrophs. Photosynthetic autotrophs include the green plants, certain algae, and the pigmented sulfur bacteria (see photosynthesisphotosynthesis
, process in which green plants, algae, and cyanobacteria utilize the energy of sunlight to manufacture carbohydrates from carbon dioxide and water in the presence of chlorophyll. Some of the plants that lack chlorophyll, e.g.
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). Chemotrophs include the iron bacteria, the nitrifying bacteria, and the nonpigmented sulfur bacteria (see chemosynthesischemosynthesis,
process in which carbohydrates are manufactured from carbon dioxide and water using chemical nutrients as the energy source, rather than the sunlight used for energy in photosynthesis. Much life on earth is fueled directly or indirectly by sunlight.
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). Heterotrophsheterotroph
, living organism that obtains its energy from carbohydrates and other organic material. All animals and most bacteria and fungi are heterotrophic. In contrast, autotrophs are organisms that use inorganic substances as energy sources and carbon dioxide as a carbon source.
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 are organisms that must obtain their energy from organic compounds.

autotroph

[′ȯd·ō‚träf] (biology) An organism capable of synthesizing organic nutrients directly from simple inorganic substances, such as carbon dioxide and inorganic nitrogen.

autotroph


autotroph

 [aw´to-trōf] an autotrophic organism.

au·to·troph

(aw'tō-trōf), A microorganism that uses only inorganic materials as its source of nutrients; carbon dioxide is the autotroph's sole carbon source. [auto- + G. trophē, nourishment]

autotroph

(ô′tə-trŏf′, -trōf′)n. An organism capable of synthesizing its own food from inorganic substances, using light or chemical energy. Green plants, algae, and certain bacteria are autotrophs.
au′to·troph′ic adj.au′to·troph′i·cal·ly adv.au·tot′ro·phy (ô-tŏt′rə-fē) n.

au·to·troph

(aw'tō-trōf) A microorganism that uses only inorganic materials as its source of nutrients; carbon dioxide serves as the sole carbon source. [auto- + G. trophē, nourishment]

autotroph

an organism that can manufacture its own organic requirements from inorganic materials independent of other sources of organic substrates. Autotrophs are either phototrophic (see PHOTOAUTOTROPH or CHEMOAUTOTROPHIC, energy being derived either by photosynthesis where chlorophyll is present, or from inorganic oxidation where it is absent (e.g. hydrogen sulphide is oxidized by sulphur bacteria). Autotrophs are primary producers (see PRIMARY PRODUCTION). Compare HETEROTROPH.

autotroph


Related to autotroph: heterotroph
  • noun

Synonyms for autotroph

noun plant capable of synthesizing its own food from simple organic substances

Synonyms

  • autophyte
  • autophytic plant
  • autotrophic organism

Related Words

  • plant life
  • flora
  • plant
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更新时间:2025/3/2 1:08:10