nitrogen cycle

Question 1

what are nitrogen fixing bacteria

Answer 1

found in the root nodules of leguminous plants

Question 2

what do nitrogen fixing bacteria do

Answer 2

take inert n2 gas and convert it to usable nitrogen such as in ammonia or nitrates in the soil

Question 3

what do nitrifying bacteria do

Answer 3

convert ammonium compounds to nitrites and then to nitrates which can be absorbed by the plant

Question 4

what do denitrifying bacteria do

Answer 4

take nitrates out of the soil and convert it back into n2 gas

Question 5

how does nitrogen get into animals

Answer 5

feeding, nitrogen compounds are taken up by plants to use for making of amino acids, animals feed on the plants and incorperate it into their system

Question 6

how do the animals return nitrogen compounds to the soil

Answer 6

waste, urine and feeces from animals sends nitrogen back into the soil as ammonium compounds