The nutrient with a key role in biological N-fixation is
A. N
B. P
C. Cl
D. Mo
Answer: Option D
Solution (By Examveda Team)
The nutrient with a key role in Biological nitrogen fixation is Molybdenum.Molybdenum, an essential micronutrient, plays an important role in nitrogen fixation, metabolism and protein synthesis in plants.
During symbiotic nitrogen fixation, Mo acts as a cofactor for nitrogenase enzymes to catalyze the redox reaction to convert elemental N to ammonium ions.
Related Questions on Soil Science
Sources of negative charges on silicate clays is/are
A. Exposed crystal edges
B. Isomorphus substitution
C. Anion exchange
D. All of these
The most conspicuous chemical change that take place when soil is flooded is reduction of
A. Fe
B. P
C. S
D. None of these

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