Describe the process of nitrogen fixation in plants. Mention the site where this process actually occurs is such plants.
Nitrogen fixation normally occurs in nodules in legume plants such as gram and arhar. They act as sites for it. The legume plants like pea, gram show symbiosis or mutualism with the bacterium, Rhizobium leguminosarum. Nitrogen fixation occurs with the help of enzymes nitrogenase and leghaemoglobin. Leghaemoglobin act as Oxygen scavenges and nitrogenase catalyse the conversion of Nitrogen into NH3
