Nitrogen cycle Flashcards
(5 cards)
1
Q
What does the nitrogen-fixing bacteria do
A
converts N2 into ammonia- NH3
2
Q
What is ammonification
A
Dead matter/ animal exrecetion in converted into NH4- Ammonium
3
Q
What is nitrification?
A
Nitrifying bacteria convert NH3 into NO2- nitrite and NO3- nitrate
4
Q
What is assimilation?
A
Trees absorb nitrates/ nitrites for nutrition
5
Q
What happens to excess nitrates/ites
A
Denitrification- denitrifying bacteria convert the excess NO2/3 into N2 back into the atmosphere
