6. Why is nitrogen important for life?
7. Why do plants need nitrogen?
8. Justify the statement Nitrogen is always cycling through the system'.
9. List the similarities and differences between Nitrogen and phosphorous cycle.
Answers
Answer:
6. Nitrogen is essential for all living things because it is a major part of amino acids, which are the building blocks of proteins and of nucleic acids such as DNA, which transfers genetic information to subsequent generations of organisms
7. Nitrogen is so vital because it is a major component of chlorophyll, the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide (i.e., photosynthesis
8. the series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms, including nitrogen fixation and decomposition
9. Both phosphorous and nitrogen are essential for plants and animals. These form their respective biogeochemical cycles that show the movement of nitrogen and phosphorus through the lithosphere, hydrosphere an biosphere