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29 Cards in this Set
- Front
- Back
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What percentage of nitrogen is is the typical bacterial cell |
About 13 |
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What is a key element in proteins, nucleic acids and many more constituents |
Nitrogen’s |
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What exists in a number of oxidation states |
Nitrogen |
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What are the four major nitrogen transformations |
Nitrification Denitrification Anammox Nitrogen fixation |
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What is HNO3 |
Nitric acid |
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What is HNO2 |
Nitrous acid |
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What is NO |
Nitric acid |
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What is N2O |
Nitrous oxide |
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What is N2 |
Nitrogen |
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What is NH3 |
Ammonia |
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What is NO3- |
Nitrate |
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What is NO2- |
Nitrite |
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What is NH2OH |
Hydroxylamine |
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What is N2H4 |
Hydrazine |
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What is the most stable form of nitrogen |
N2 |
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What is the equation of the Harber- Bosch cycle |
N2+3 H2—> 2 NH3 |
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When was ammonia first made |
1913 |
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What was ammonia a critical for in a war |
German munitions effort |
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What did Nobel prize winner of 1918 win it for |
Fertiliser allowing for more food to be produced more efficiently |
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What did the haber Bosch process lead to in terms of humanity |
Served as a detonator of the population explosion enabling global population to increase from 1.6 billion 1900 to 7.8 billion today |
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What percentage of nitrogen doing in human tissues originated from haber Bosch process |
80% |
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What percentage of haber process is man made greenhouse gases |
1% |
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What is nitrogen fixation catalysed by |
Nitrogenase complex |
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What does nitrogenase contain multiple of |
Multiple iron sulphur clusters to Channel electrons from ATP hydrolysis to the FeMo active site |
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What are the two enzymes in the nitrogenase complex |
Dinitrogenase reductase Dinitrogenase |
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What is the process where the element nitrogen is assimilated by carbon metabolism |
Ammonium assimilation into glutamate |
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What can bacteria catalyse every step of |
Nitrogen cycle |
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What do bacterial nitrogenase reduce |
Inhert N2 to NH3 which can be metabolised this consumes a lot of ATP |
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What is glutamine syntetase regulated by |
Adenylation |
