Nitrogen Cycle

Question 1

What is nitrogen fixation

Answer 1

N2 -> NH4

Nitrogen fixing bacteria found in the soil on root nodules of plants

Lightning has energy
N2 -> NOx

Question 2

Nitrification

Answer 2

Ammonia -> nitrite -> nitrate

Nitrifying bacteria
Plants are able to use nitrates

Question 3

Denitrification

Answer 3

NO3- -> N2

Denitrifying bacteria decreases amount of nitrate in the soil

Question 4

Decomposition

Answer 4

Nitrogen in plants -> ammonia

Death of plants, decomposers produce ammonia from the proteins, DNA and vitamins

Question 5

Feeding and assimilation

Answer 5

Passes nitrogen atoms along the food chains