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2. Autotroph - Wikipedia

   en.wikipedia.org/wiki/Autotroph

   An autotroph is an organism that can convert abiotic sources of energy into energy stored in organic compounds, which can be used by other organisms. Autotrophs produce complex organic compounds (such as carbohydrates , fats , and proteins ) using carbon from simple substances such as carbon dioxide, [ 1 ] generally using energy from light or ...

3. Photoautotroph - Wikipedia

   en.wikipedia.org/wiki/Photoautotroph

   Winogradsky column showing Photoautotrophs in purple and green. Photoautotrophs are organisms that can utilize light energy from sunlight and elements (such as carbon) from inorganic compounds to produce organic materials needed to sustain their own metabolism (i.e. autotrophy).

4. Primary nutritional groups - Wikipedia

   en.wikipedia.org/wiki/Primary_nutritional_groups

   Organotrophs use organic compounds as electron/hydrogen donors. Lithotrophs use inorganic compounds as electron/hydrogen donors.. The electrons or hydrogen atoms from reducing equivalents (electron donors) are needed by both phototrophs and chemotrophs in reduction-oxidation reactions that transfer energy in the anabolic processes of ATP synthesis (in heterotrophs) or biosynthesis (in autotrophs).

5. Carbon source (biology) - Wikipedia

   en.wikipedia.org/wiki/Carbon_source_(biology)

   An autotroph is an organism that can convert abiotic sources of energy into energy stored in organic compounds, which can be used by other organisms.Autotrophs produce complex organic compounds (such as carbohydrates, fats, and proteins) using carbon from simple substances such as carbon dioxide, [1] generally using energy from light or inorganic chemical reactions. [2]

6. Lithoautotroph - Wikipedia

   en.wikipedia.org/wiki/Lithoautotroph

   A lithoautotroph is an organism which derives energy from reactions of reduced compounds of mineral (inorganic) origin. [1] Two types of lithoautotrophs are distinguished by their energy source; photolithoautotrophs derive their energy from light while chemolithoautotrophs (chemolithotrophs or chemoautotrophs) derive their energy from chemical reactions. [1]

7. Phytoplankton - Wikipedia

   en.wikipedia.org/wiki/Phytoplankton

   Phytoplankton (/ ˌ f aɪ t oʊ ˈ p l æ ŋ k t ə n /) are the autotrophic (self-feeding) components of the plankton community and a key part of ocean and freshwater ecosystems.The name comes from the Greek words φυτόν (phyton), meaning 'plant', and πλαγκτός (planktos), meaning 'wanderer' or 'drifter'.

8. 3-Hydroxypropionate bicycle - Wikipedia

   en.wikipedia.org/wiki/3-Hydroxypropionate_bicycle

   [1] [4] T In E. coli 3-hydroxypropionate bicycle has been studied and found to be insensitive to oxygen. This means that within the pathways there is nothing that oxygen can affect because in either part of the pathway or the oxygen is used to drive the reaction forward. [5]

9. Primary production - Wikipedia

   en.wikipedia.org/wiki/Primary_production

   [1] [2] The remaining fixed energy (i.e., mass of photosynthate) is referred to as net primary production (NPP). NPP = GPP - respiration [by plants] Net primary production is the rate at which all the autotrophs in an ecosystem produce net useful chemical energy. Net primary production is available to be directed toward growth and reproduction ...