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单词 heterotroph
释义

Definition of heterotroph in English:

heterotroph

noun ˈhɛt(ə)rə(ʊ)trəʊfhɛt(ə)rə(ʊ)ˈtrɒfˈhɛdərəˌtrɑf
Biology
  • An organism deriving its nutritional requirements from complex organic substances.

    Compare with autotroph
    Example sentencesExamples
    • Classified by the source of their energy, bacteria fall into two categories: heterotrophs and autotrophs.
    • Unlike plants, animals are heterotrophs which means they are unable to live on inorganic nutrients alone.
    • Animals, on the other hand, are heterotrophs, life forms that depend on the consumption of plants, animals or both in order to meet their bioenergetic requirements.
    • This photosynthetic control of cell-cycle progression is similar to the nutritional control of heterotrophs.
    • The result, especially when heterotrophs are preyed upon by other heterotrophs, is a food chain.

Derivatives

  • heterotrophic

  • adjective
    Biology
    • They commonly occur as free-living, photosynthetic and marine unicells and also include endosymbiotic, parasitic, heterotrophic and freshwater taxa.
      Example sentencesExamples
      • Overall, the results stress the importance of both heterotrophic and phototrophic metabolisms when considering environmental controls on the structure of bacterial communities in the sea.
      • Physiologically, plant conversion or seedling development involves a transition from the heterotrophic embryo to an autotrophic plant.
      • One of the most dramatic effects of light on plant development is observed in the de-etiolation process of photomorphogenesis, when plants pass from heterotrophic to autotrophic life.
      • In this case, changes in photosynthetic activity enable comparisons to be made between mitochondria in autotrophic and heterotrophic tissue.
  • heterotrophy

  • noun
    Biology
    • Based on polyp size, corallite structure, and surface area considerations, M. faveolata appears to depend on photoautotrophy versus heterotrophy to a greater extent than its congener, M. cavernosa.
      Example sentencesExamples
      • Results suggest that the excess organic matter from these tropical estuaries supports heterotrophy in the adjacent coastal ecosystem
      • This dynamic nature of the evolutionary changes must have been responsible for the breakdowns of the pathways, resulting in profound differentiation of heterotrophy among the species.
      • After greening and probable transition from heterotrophy to autotrophy, root growth rate was enhanced and growth followed a linear pattern.
      • If detached leaves were fed glucose, inducing a rapid switch from autotrophy to heterotrophy, then they were seen to exhibit GPT activity.

Origin

Early 20th century: from hetero- 'other' + Greek trophos 'feeder'.

 
 

Definition of heterotroph in US English:

heterotroph

nounˈhɛdərəˌtrɑfˈhedərəˌträf
Biology
  • An organism deriving its nutritional requirements from complex organic substances.

    Compare with autotroph
    Example sentencesExamples
    • Unlike plants, animals are heterotrophs which means they are unable to live on inorganic nutrients alone.
    • Animals, on the other hand, are heterotrophs, life forms that depend on the consumption of plants, animals or both in order to meet their bioenergetic requirements.
    • Classified by the source of their energy, bacteria fall into two categories: heterotrophs and autotrophs.
    • This photosynthetic control of cell-cycle progression is similar to the nutritional control of heterotrophs.
    • The result, especially when heterotrophs are preyed upon by other heterotrophs, is a food chain.

Origin

Early 20th century: from hetero- ‘other’ + Greek trophos ‘feeder’.

 
 
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更新时间:2024/9/21 8:17:48