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词汇 autotroph
释义

Definition of autotroph in English:

autotroph

noun ˈɔːtə(ʊ)trɒfˈɔːtə(ʊ)trəʊfˈôdəˌtrōf
Biology
  • An organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.

    〔生〕自养生物。比较HETEROTROPH

    Compare with heterotroph
    Example sentencesExamples
    • These developmental differences between autotrophs and parasites suggest that the functions of photoreceptors differ among autotrophs, hemiparasites, and holoparasites.
    • The kelps are an important group of marine autotrophs that has left little or nothing in the way of a direct fossil record.
    • Because they interact with light to absorb only certain wavelengths, pigments are useful to plants and other autotrophs - organisms which make their own food using photosynthesis.
    • Plants are autotrophs, self-nourishing life forms.
    • Since plants and other photosynthetic organisms can produce many of their own nutrition requirements they are known as autotrophs.
    • It is a true autotroph and uses only two sources for its metabolism: carbon dioxide as its source for carbon and hydrogen as an energy source.

Derivatives

  • autotrophic

  • adjective ˌɔːtəˈtrɒfɪkˌɔːtəˈtrəʊfɪk
    Biology
    • Physiologically, plant conversion or seedling development involves a transition from the heterotrophic embryo to an autotrophic plant.
      Example sentencesExamples
      • Plants are sessile, autotrophic, and grow in an indeterminate and modular manner.
      • These differences correlate with differentiated function as heterotrophic, autotrophic and transport pathway components of the leaf.
      • Moreover, growth rate was deeply reduced during heterotrophic and autotrophic development.
      • Recently there has been discussion about the metabolic state of the ocean, with arguments questioning whether the open ocean is net autotrophic or net heterotrophic.
  • autotrophy

  • noun
    Biology
    • After greening and probable transition from heterotrophy to autotrophy, root growth rate was enhanced and growth followed a linear pattern.
      Example sentencesExamples
      • They consider that early achievement of autotrophy is a major feature of structures with a high degree of foliarization.
      • This period is followed by post-germinative growth that leads to seedling establishment and the acquisition of autotrophy.

Definition of autotroph in US English:

autotroph

nounˈôdəˌtrōf
Biology
  • An organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.

    〔生〕自养生物。比较HETEROTROPH

    Compare with heterotroph
    Example sentencesExamples
    • The kelps are an important group of marine autotrophs that has left little or nothing in the way of a direct fossil record.
    • It is a true autotroph and uses only two sources for its metabolism: carbon dioxide as its source for carbon and hydrogen as an energy source.
    • Since plants and other photosynthetic organisms can produce many of their own nutrition requirements they are known as autotrophs.
    • Because they interact with light to absorb only certain wavelengths, pigments are useful to plants and other autotrophs - organisms which make their own food using photosynthesis.
    • Plants are autotrophs, self-nourishing life forms.
    • These developmental differences between autotrophs and parasites suggest that the functions of photoreceptors differ among autotrophs, hemiparasites, and holoparasites.
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