Question

2. Which of the following shows the correct order for reactions of assimilation of nitrogen in plants:

a. nitrate-nitrite- ammonium-glutamine-glutamate

b. nitrate-nitrite-amonium-gutamate-glutamine

b. nitrite-nitrate-ammonium-glutamine-glutamate

c. ammonium-nitrite-nitrate-glutamine-glutamate

Answer 1

a) nitrate-nitrite- ammonium-glutamine-glutamate

Plants absorb the nitrogen from the soil in the form of nitrate (NO3−) and ammonium (NH4+). Ammonia (both absorbed and synthesized) is incorporated into amino acids via the glutamine synthetase-glutamate synthase (GS-GOGAT) pathway.