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Related to heterotroph: heterotroph hypothesis


 (hĕt′ər-ə-trŏf′, -trōf′)
An organism that is dependent on complex organic substances for nutrition because it cannot synthesize its own food.

het′er·o·troph′ic adj.
het′er·o·troph′i·cal·ly adv.
het′er·ot′ro·phy (-ə-rŏt′rə-fē) n.


(ˈhɛt ər əˌtrɒf, -ˌtroʊf)

an organism requiring organic compounds for its principal source of food. Compare autotroph.
het`er•o•troph′ic, adj.


An organism that obtains food by feeding on other organisms, e.g. animals, fungi.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.heterotroph - an organism that depends on complex organic substances for nutrition
organism, being - a living thing that has (or can develop) the ability to act or function independently
References in periodicals archive ?
As Schizochytrium is a slow growing heterotroph consuming glucose at a slow rate, wai cultivation in a non carbon catabolite repression condition or in an increased acetyl-CoA synthethase state gives rise to higher growth and glucose consumption rates (27).
The velocity of growth of the denitrificant microorganisms is very similar to that of aerobe heterotroph organisms; therefore, greater than the nitrificants.
The use of carbon and nitrogen stable isotopes offers a more efficient alternative to investigate trophic relationships between plants and animals in aquatic ecosystems, permitting direct identification of the relative contributions from different autotrophic energy sources to heterotroph food chains (PETERSON; FRY, 1987).
The data were compared with the averages of aerobic heterotroph concentrations in the control sample.
The total microbial quality taking into account the presence of faecal coliform, total coliform, enterococci, and heterotroph bacteria as indicator organisms, is detailed in the table.
Because essential fatty acids are not influenced by subsequent metabolism within a eukaryotic heterotroph, they retain their original isotope composition (Stott et al.
17) No minimum standards are offered by the EPA with regard to heterotroph counts.
Table 3-1 The Five Kingdom System Kingdom Cellular Nutrition Type Examples Organization Monera * Prokaryotic * Varies Bacteria * Unicellular Fungi * Eukaryotic * Heterotroph Molds, yeasts, * Unicellular or (cannot make mushrooms, multicellular its own food) smuts, rusts * Absorptive Protista * Eukaryotic * Heterotroph Protozoa * Unicellular (a few autotrophic species exist) Animalia * Eukaryotic * Heterotroph Invertebrates, * Multicellular * Ingestive vertebrates Plantae * Eukaryotic * Autotroph Plants, mosses, * Multicellular (can make its ferns own food) Table 3-2 Classification of the House Cat, Human, and E.
1997) measured significant levels of heterotroph activity and C[O.
Their hypothesis, in my view, suffers from the weakness that it requires a huge changeover in the metabolism of the host from an autotroph [which makes ATP from nonorganic fuel] to a heterotroph [which generates energy from organic molecules]," he says.
Just as there are important economic differences between an autotroph and a heterotroph, so, too, there are important economic differences between an organism that can think and one that cannot.
Like us, Rpom is a heterotroph that eats organic molecules to survive.