Study the diagram given below and then answer the questions that follow :
(a) Briefly describe how nitrogen of the atmosphere is converted to nitrates by leguminous plants.
(b) Name the bacteria that converts (i) ammonium compounds to nitrites (ii) nitrites to nitrates.
(c) State how the nitrates in the soil get converted to nitrogen of the atmosphere.
(d) Role of plants and animal in the formation of ammonium compounds.
Study the diagram given below and then answer the questions that follow :
(a) Briefly describe how nitrogen of the atmosphere is converted to nitrates by leguminous plants.
(b) Name the bacteria that converts (i) ammonium compounds to nitrites (ii) nitrites to nitrates.
(c) State how the nitrates in the soil get converted to nitrogen of the atmosphere.
(d) Role of plants and animal in the formation of ammonium compounds.
(a) Soil bacteria such as Rhizobium are present in the root nodules of leguminous plants. These bacteria convert free nitrogen of the soil atmosphere to soluble nitrates.
(b) (i) Nitrosomonas converts ammonium compounds to nitrites.
(ii) Nitrobacter converts nitrites to nitrates.
(c) Denitrifying bacteria in the soil break down nitrates present in the soil to release nitrogen gas which enters the atmosphere.
(d) Nitrifying bacteria present in the soil convert nitrogenous wastes of animals and dead remains of plants and animals to ammonia. Ammonia is then converted to ammonium compounds. In this way, plants and animals help in the formation of ammonium compounds.
(a) Soil bacteria such as Rhizobium are present in the root nodules of leguminous plants. These bacteria convert free nitrogen of the soil atmosphere to soluble nitrates.
(b) (i) Nitrosomonas converts ammonium compounds to nitrites.
(ii) Nitrobacter converts nitrites to nitrates.
(c) Denitrifying bacteria in the soil break down nitrates present in the soil to release nitrogen gas which enters the atmosphere.
(d) Nitrifying bacteria present in the soil convert nitrogenous wastes of animals and dead remains of plants and animals to ammonia. Ammonia is then converted to ammonium compounds. In this way, plants and animals help in the formation of ammonium compounds.
