6. Nitrogen is an important component of DNA and proteins and there\'s plenty of

Question

6. Nitrogen is an important component of DNA and proteins and there's plenty of nitrogen (in the form of N2) in the air. How does this atmospheric N2 become chemically reduced (or 'fixed') such that it can be incorporated into DNA and proteins? A) Mitochondria possess the enzyme Nitrogenase that converts N2 to NHz. B) Bacteria that reside in the human gut possess the enzyme Nitrogenase that converts N2 to NHs. C Bacteria within plant root nodules possess the enzyme Nitrogenase that converts N2 to NHs. D) Bacteria on the surface of plant leaves possess the enzyme Nitrogenase that converts N2 to NH,

Explanation / Answer

Nitrogen fixation is the process in which the atmospheric nitrogen is converted to ammonia with the help of nitrogenase enzyme. This process occurs in soil and mainly in the legumes of bacteria. Legumes helps to fix mitogen from atmosphere.  

Nitrogen fixation is important because atmospheric mitogen is inert and it will not react any other molecules in the atmosphere. So for the biosynthetic pathway of building blocks of life plant and animals to crate nitogem in inorganic nitrogen compounds is necessary. So DNA, RNA and nucleotides and protein synthesis. Hence root nodules possess the enzyme nitrogenase that converts nitrogen to ammonia.

Hence option (C) is correct.

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