Atmospheric nitrogen is fixed by Nitrogenase by converting $\mathrm{N}_2$ to $\mathrm{NO}_3^{-}$.

The catalytic redox center of Nitrogenase contains Mo and Fe as cofactors.

Nitrogenase can function optimally only in the presence of molecular oxygen.

The transport of important amides, like asparagine and glutamine, produced by transamination, to different parts of the plant body is mediated by phloem.

Greater variation of ecosystems found in India than in Scandinavia.

Higher diversity of amphibians in the Western Ghats than in the Eastern Ghats.

Variation in potency and concentration of reserpine produced by Rauwolfia vomitoria.

The greater diversity of plant species found in India compared to Central Asia.

Rho factor

Release factor

Sigma factor

Termination factor

P-(i); Q-(iv); R-(iii); S-(v)

P-(iii); Q-(ii); R-(v); S-(iv)

P-(iv); Q-(v); R-(i); S-(ii)

P-(v); Q-(i); R-(iv); S-(iii)