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Question contain STATEMENT-1 (Assertion) and STATEMENT-2 (Reason).Each question has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.
Statement 1 : Magnesium is important in photosynthesis and carbohydrate metabolism.
Statement 2 :Mg++is involved in the synthesis of nucleic acids.
Magnesium is a constituent of the chlorophyll molecule,without which photosynthesis would not occur.Many of the enzymes involved in carbohydrate metabolism require magnesium as an activator. Magnesium is also an activator for those enzymes involved in the synthesis of nucleic acids (DNA, RNA) from nucleotide polyphosphate.
Which one of the following is an amide involved in nitrogen assimilation by plants?
Which bacteria converts NO2 to NO3?
Nifgenes occur in
Nifgene is present in Rhizobium. It is responsible for the synthesis of enzyme nitrogenase which can fix atmospheric nitrogen. Rhizobium leguminosarum bacteria is found symbiotically associated in the root nodules of leguminous plant.
Conversion of organic nitrogenous compounds into ammonium compounds is called
N2 + 8e– + 8H+ + 16ATP → 2NH3, + H2+ 16ADP + 16Pi
The above equation refers to
Which one of the following is an amide involved in nitrogen assimilation by plants?
The cell of a root nodule in leguminous plant shows a rod shaped structure called _________.
A free living nitrogen-fixing cyanobacterium which can also form symbiotic association with the water fern Azolla is
Azotobacter and Beijerinckia are the examples of