heterotroph

(noun)

An organism that requires an external supply of energy in the form of food as it cannot synthesize its own.

Related Terms

  • denitrification
  • hyperthermophiles
  • methanogenesis
  • lithoautotroph
  • autotroph

(noun)

An organism which requires an external supply of energy in the form of food as it cannot synthesize its own.

Related Terms

  • denitrification
  • hyperthermophiles
  • methanogenesis
  • lithoautotroph
  • autotroph

Examples of heterotroph in the following topics:

  • Growth Terminology

    • The two ways that microbial organisms can be classified are as autotrophs (supply their own energy) or as heterotrophs (use the products of others).
    • A heterotroph is an organism that, unlike an autotroph, cannot fix carbon and uses organic carbon for growth.
    • Heterotrophs use the products formed by autotrophs to survive.
    • Photoheterotrophs are a type of heterotroph.
    • Chemoheterotrophs are a type of heterotroph.
  • Prochlorophytes

    • Picoplankton is the fraction of plankton which can be photosynthetic or heterotrophic.
    • Picoplankton is the fraction of plankton, composed by cells between 0.2 and 2 μm, that is either photosynthetic (photosynthetic picoplankton; ) or heterotrophic (heterotrophic picoplankton).
  • Organization of Ecosystems

    • Heterotrophs, which must feed on other organisms in order to obtain organic matter.
    • Consumers (heterotrophs) cannot manufacture their own food and need to consume other organisms.
    • Within ecosystems, the biotic factors that comprise the categories above can be organized into a food chain in which autotrophic producers use materials and nutrients recycled by decomposers to make their own food; the producers are in turn eaten by heterotrophic consumers.
    • A food web depicts a collection of heterotrophic consumers that network and cycle the flow of energy and nutrients from a productive base of self-feeding autotrophs .
  • Photoautotrophs and Photoheterotrophs

    • Not all phototrophs are photosynthetic but they all constitute a food source for heterotrophic organisms.
    • A heterotroph is an organism that depends on organic matter already produced by other organisms for its nourishment.
  • Oxidation of Reduced Sulfur Compounds

    • Beggiatoa can grow chemoorgano-heterotrophically by oxidizing organic compounds to carbon dioxide in the presence of oxygen, although high concentrations of oxygen can be a limiting factor.
    • Some species may oxidize hydrogen sulfide to elemental sulfur as a supplemental source of energy (facultatively litho-heterotroph).
    • Beggiatoa can grow chemoorgano-heterotrophically by oxidizing organic compounds to carbon dioxide in the presence of oxygen, though high concentrations of oxygen can be a limiting factor.
    • Some species may oxidize hydrogen sulfide to elemental sulfur as a supplemental source of energy (facultatively litho-heterotroph).
  • Types of Microorganisms

    • According to the way they obtain energy, bacteria are classified as heterotrophs or autotrophs.
    • Heterotrophs obtain their energy by consuming other organisms.
    • They also have different means of nutrition, which groups them as autotrophs or heterotrophs.
  • Overview of Proteobacteria

    • Most members are facultatively or obligately anaerobic, chemoautotrophs, and heterotrophic, but there are numerous exceptions.
  • The Energetics of Chemolithotrophy

    • Chemotrophs can be either autotrophic or heterotrophic.
  • Sources of Essential Nutrients

    • Nitrogen is important for heterotroph survival, but it must first be degraded into basic building blocks, such as amino acids, in order to be used.
  • Wetland Soils

    • Under a few millimeters of water heterotrophic bacteria metabolize and consume oxygen.
    • Bacteria, heterotrophic organisms, consume oxygen while decomposing organic material which depletes the soils of oxygen, thus increasing the redox potential.
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