The Nitrogen Cycle
The Nitrogen Cycle, not including human influences.
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- Created by: Rhi_
- Created on: 17-04-14 20:05
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- Nitrogen in plants proteins, amino acids, DNA
- Eaten
- Nitrogen in animals proteins, amino acids, DNA
- Death and excretion (urea, uric acid)
- Dead organic matter
- Ammonification
- (the decomposition by detritivores and decomposers)
- Ammonium ions NH4+
- Oxidation by bacteria e.g. Nitrosomonas
- Nitrate ions NO2-
- Oxidation by bacteria e.g. Nitrobacter
- Nitrate ions NO3-
- Root absoption
- Nitrogen in plants proteins, amino acids, DNA
- Eaten
- Nitrogen in animals proteins, amino acids, DNA
- Death and excretion (urea, uric acid)
- Dead organic matter
- Ammonification
- (the decomposition by detritivores and decomposers)
- Ammonium ions NH4+
- Oxidation by bacteria e.g. Nitrosomonas
- Nitrate ions NO2-
- Oxidation by bacteria e.g. Nitrobacter
- Nitrate ions NO3-
- Root absoption
- Denitrifying bacteria e.g. Pseudomonas. Nitrates chemically reduced to N2
- Atmospheric nitrogen N2
- Ionising processes e.g. lightning. (N2+O2=NOX)
- Nitrogen fixation by root nodule bacteria e.g. Rhizobium on roots of legumes
- Nitrogen fixation by nitrifying bacteria
- Nitrogen fixation by nitrifying bacteria
- Nitrogen fixation by nitrifying bacteria
- Ionising processes e.g. lightning. (N2+O2=NOX)
- Atmospheric nitrogen N2
- Root absoption
- Nitrate ions NO3-
- Oxidation by bacteria e.g. Nitrobacter
- Nitrate ions NO2-
- Oxidation by bacteria e.g. Nitrosomonas
- Ammonification
- Dead organic matter
- Death and excretion (urea, uric acid)
- Nitrogen in animals proteins, amino acids, DNA
- Eaten
- Nitrogen in plants proteins, amino acids, DNA
- Denitrifying bacteria e.g. Pseudomonas. Nitrates chemically reduced to N2
- Atmospheric nitrogen N2
- Ionising processes e.g. lightning. (N2+O2=NOX)
- Nitrogen fixation by root nodule bacteria e.g. Rhizobium on roots of legumes
- Nitrogen fixation by nitrifying bacteria
- Nitrogen fixation by nitrifying bacteria
- Nitrogen fixation by nitrifying bacteria
- Ionising processes e.g. lightning. (N2+O2=NOX)
- Atmospheric nitrogen N2
- Root absoption
- Nitrate ions NO3-
- Oxidation by bacteria e.g. Nitrobacter
- Nitrate ions NO2-
- Oxidation by bacteria e.g. Nitrosomonas
- Ammonification
- Dead organic matter
- Death and excretion (urea, uric acid)
- Nitrogen in animals proteins, amino acids, DNA
- Eaten
- Death and leaf fall
- Key:
- Red boxes - nitrogen stores
- Blue boxes - nitrogen processes that allow them to move between stores
- The Nitrogen Cycle (not including human influences)
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