NEET BIOLOGY

Detailed explanation-1: -Molybdenum is a micronutrient that plays an important role in nitrogen fixation. It is a part of nitrate reductase enzyme that helps in nitrogen fixation.

Detailed explanation-2: -The molybdenum nitrogenase is responsible for most biological nitrogen fixation, a prokaryotic metabolic process that determines the global biogeochemical cycles of nitrogen and carbon.

Detailed explanation-3: -Molybdenum is utilized by selected enzymes to carry out redox reactions. Enzymes that require molybdenum for activity include nitrate reductase, xanthine dehydrogenase, aldehyde oxidase and sulfite oxidase.

Detailed explanation-4: -Biological nitrogen fixation, the main source of new nitrogen to the Earth’s ecosystems, is catalysed by the enzyme nitrogenase. There are three nitrogenase isoenzymes: the Mo-nitrogenase, the V-nitrogenase and the Fe-only nitrogenase. All three types require iron, and two of them also require Mo or V.

Detailed explanation-5: -Molybdenum is a component of nitrogenase and nitrate reductase involved during N2 fixation.