Biology Question, Please Help?

Question

I cannot seem to find the answer to this question,

please help.

bacteria in root nodules change nitrogen gas into what form?

PLEASE HELP :)

Answer 1

bact. in root nodules are called nitrogen fixing bacteria and they fix nitrogen into ammonia, NH3. the nitrogen comes from the air, the hydrogen comes from the carbohydrate supplied by the leguminous plants. the bacteria , obviously, combine these 2 gases and the process is catalysed by nitrogenase enzymes they secrete.

addition: the ammonia is then combined with glutamine to form other amino acids.

not to confuse these bacteria with nitrating bacteria..