Search on: HETEROTROPHIC PROCESSES 
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Descriptor English:   Heterotrophic Processes 
Descriptor Spanish:   Procesos Heterotróficos 
Descriptor Portuguese:   Processos Heterotróficos 
Synonyms English:   Growth, Heterotrophic
Heterotrophic Growth
Heterotrophic Process
Heterotrophy
Process, Heterotrophic
Processes, Heterotrophic  
Tree Number:   G02.111.375
G03.393
Definition English:   The processes by which organisms utilize organic substances as their nutrient sources. Contrasts with AUTOTROPHIC PROCESSES which make use of simple inorganic substances as the nutrient supply source. Heterotrophs can be either chemoheterotrophs (or chemoorganotrophs) which also require organic substances such as glucose for their primary metabolic energy requirements, or photoheterotrophs (or photoorganotrophs) which derive their primary energy requirements from light. Depending on environmental conditions some organisms can switch between different nutritional modes (AUTOTROPHY; heterotrophy; chemotrophy; or PHOTOTROPHY) to utilize different sources to meet their nutrients and energy requirements. 
See Related English:   Autotrophic Processes
Chemoautotrophic Growth
Nutritional Physiological Phenomena
Phototrophic Processes
 
History Note English:   2007 
Allowable Qualifiers English:  
DE drug effects GE genetics
IM immunology PH physiology
RE radiation effects  
Record Number:   52483 
Unique Identifier:   D052836 

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