Cefaclor is used for treatment of infections caused by susceptible organisms including H influenzae and for treatment of otitis media, sinusitis, and infections involving the respiratory tract. It may not be appropriate in acute sinusitis, owing to less activity and the potential for severe allergic reactions.
nitrogen-fixing bacteria noun [pl]. âº biology âbacteria that can âabsorb nitrogen from the âair and âchange it into a âform that âplants can use for âfood. (Definition of nitrogen-fixing bacteria from the Cambridge Academic Content Dictionary Â© Cambridge University Press). See all translations.
During the conversion of nitrogen cyano bacteria will first convert nitrogen into ammonia and ammonium, during the nitrogen fixation process. Plants can use ammonia as a nitrogen source. Nitrogen fixation is carried out according to the following reaction: N2 + 3 H2 -> 2 NH3. After ammonium fixation, the ammonia and ammonium that is formed will be transferred further, during the nitrification process. Aerobic bacteria use oxygen to convert these compounds.