In this article we will discuss about the enzyme system involved in the fixation of atmospheric nitrogen. The fixation of atmospheric nitrogen relies on nitrogenase enzyme system, which comprise of nitrogenase and nitrogenase reductase. The electrons are transferred through ferredoxin or flavodoxin to nitrogenase reductase and then to nitrogenase where they are utilized to reduce N2 and H+ to NH3 [...]
Everything you need to know about biogeochemical cycling. Some of the most frequently asked exam questions are as follows:- Q.1. What is carbon cycle? Ans: It mainly includes the transfer of CO2 and organic carbon between the atmosphere (the source of inorganic CO2) and hydrosphere (the aqueous envelope of the earth as bodies of water and aqueous vapours) and lithosphere [...]
The following points highlight the top five types of biochemical cycle existing in ecosystem. The types are: 1. Hydrologic Cycle 2. Gascons Nutrient Cycle 3. Sedimentary Nutrient Cycle 4. Phosphorus Cycle 5. Sulphur Cycle. Type # 1. Hydrologic Cycle: In the hydrologic cycle there occurs an interchange of compounds between the earth's surface and the atmosphere via precipitation and evaporation. [...]