N redox states Flashcards
What is the change in redox state of Nitrification?
N oxidation
Oxidation of ammonia to nitrate
What is the change in redox state of N fixation?
N reduction.
Reduction of nitrogen gas to form ammonia
What is the change in redox state of denitrification?
N reduction.
reduction of nitrate to nitrogen gas
What is the change in redox state of nitrate assimilation?
N reduction.
Reduction nitrate to ammonia before uptake
What is the change in redox state of ammonium assimilation?
no change
organisms can take up ammonium directly
What is the change in redox state of ammonification?
no change.
formation of ammonia from OM e.g., during decomposition of OM. Organic matter (inc cells) have nitrogen in the reduced state, so turning from organic nitrogen to ammonium doesn’t change the oxidation state.
