Term
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Definition
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Term
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Definition
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Term
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Definition
N2-->NH3-->amine groups
Only process by which N2 returns to biological form.
Only done by certain bacteria.
Free-living in soil and water
Cyanobacteria, Clostridium, etc.
Symbiotic
Rhizobium and leguminous plants |
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Term
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Definition
ammonia is released into the environment. (ammonification)
Eukaryotes!!
Amino Acids can be used as fuel molecules and in organic molecules transformations. |
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Term
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Definition
NH4+==> NO2-==>NO3-
Nitrogen compounds provide electrons for ETC. |
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Term
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Definition
NO3-==> NO2-==>NH4+ ==> N2O and N2
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V
N2O and N2
N compounds serve as final acceptors in ETC. |
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Term
| assimilatory nitrate reduction |
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Definition
assimilation
Nitrate ==> Organic N
Source of organic nitrogen for many organisms.
plants, algae, some bacteria and archaea |
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