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AUTOTROPHIC PROCESSES
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DeCS
Descriptor
English
:
Autotrophic Processes
Descriptor
Spanish
:
Procesos Autotróficos
Descriptor
Portuguese
:
Processos Autotróficos
Tree Number:
G02.111.087.070
G02.149.115.070
G03.495.153
Definition
English
:
The processes by which organisms use simple
inorganic substances
such as gaseous or dissolved
carbon dioxide
and inorganic
nitrogen
as nutrient sources. Contrasts with
heterotrophic processes
which make use of organic
materials
as the nutrient
supply
source. Autotrophs can be either chemoautotrophs (or chemolithotrophs), largely
ARCHAEA
and
BACTERIA
, which also use simple
inorganic substances
for their metabolic
energy
reguirements; or photoautotrophs (or photolithotrophs), such as
PLANTS
and
CYANOBACTERIA
, which derive their
energy
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 nutrient and
energy
requirements.
See Related
English
:
Heterotrophic Processes
Nutrition Processes
Phototrophic Processes
History Note
English
:
2007
Allowable Qualifiers
English
:
DE
drug effects
GE
genetics
IM
immunology
PH
physiology
RE
radiation effects
Record Number:
52480
Unique Identifier:
D052818
Occurrence in VHL
:
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CID-10
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