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Which of the following statements about nitrification is not true ?
Heterotrophic plants are less dependent on nitrogen obtained from nitrification since they receive some nitrite and nitrate through their parasitic or carnivorous nutritional modes.
Nitrogen gas is reduced to ammonia by
Nitrogenase catalyzes the reduction of nitrogen gas to ammonia. This is an energy-expensive process.
Denitrification is carried by bacteria
Nitrogenase
Nodules that are actively fixing nitrogen are pink,demonstrating the presence of -g
Which pigment is essential for nitrogen fixation by leguminous plants ?
Leghaemoglobin is an oxygen scavenger. The enzyme that catalyses the fixation of nitrogen (nitrogenase) functions under anaerobic conditions. Leghaemoglobin combines with oxygen and protects nitrogenase.
Legume roots have swellings called nodules that
Legume roots have swellings called nodules that contain nitrogen-fixing bacteria of the genus Rhizobium.
Which is the most abundant gas in our atmosphere that cannot be utilized by plants directly in its atmospheric form and is,therefore, captured by certain bacteria that live symbiotically in the nodules of roots ?
Despite the fact that the atmosphere is 79% nitrogen gas,plants cannot use the element in that form and frequently suffer from nitrogen deficiency.
Which of the following is a flowering plant with nodules containing filamentous nitrogen-fixing microorganism ?
Reaction carried out by N2 metabolising microbes include-
(i)2NH3+3O2 → 2NO2+2H+ + H2O
(ii)MNO2+O2 → 2NO3
Which of the following statements about these equations is not correct –