3 processes involving nitrogen
Ammonification
Nitrification
Nitrogen fixing
What type of organisms carry out ammonification
saprobionts: bacteria and fungi
What is ammonification and what does it result in
Removal of the amino group from amino acids
Ammonium
What types of materials are broken down by saprobionts during ammonification
The PROTEINS in
Faeces and Dead organisms to release AMINO ACIDS
What bacteria carry out nitrification
Nitrosomonas
Nitrobacter
What is the reaction that nitrosomonas perform
NH4+》NO2-
What reaction do nitrobacters perform
NO2-》NO3-
Nitrogen fixing
Process by which atmospheric N2 is converted to a form that living organisms can use
What bacteria carry out nitrogen fixation
Azotobacters
Rhuzomium
Where are rhizobium found and relationship
Found in root nodules of leguminous plants
Symbiotic
Where are azotobacters found
Living free in the soil
Descrive the key steps of eutrophication using key words 7
Use of inorganic fertilizers
Leaching into waters
Algal bloom
Blocks light》 no photosynthesis
Death of plants, decomposed by aerobic bacteria
Anoxic conditions
Death of marine life
What in the name of the reaction psudomonas cary out, what is the reaction, where are they found and what conditions
Denitrificatiin
Anaerobes: water logged soils
NO3- 》N2
