Question

what happens to the nitrogen once it is converted into forms that can be taken up and used to make nitrogen Containing molecules

Answer 1

The nitrogen after converted into soluble form reaches the ground due to the dung or the death of the organism. After that some bacteria present in the ground transforms this into gaseous nitrogen and releases it into the atmosphere

Answer 2

Answer:

Once nitrogen is converted into compounds like ammonium and nitrate, these can be taken up from soils by plants and then the nitrogen can be used to form macromolecules like proteins and nucleic acids . As part of these life processes, nitrogen is transformed from one chemical form to another.

The air we breathe contains 78% nitrogen, 21% oxygen and remaining are other trace gases. The nitrogen component of air is inert. So this means plants and animals cannot use it directly. To be able to use nitrogen, plants convert atmospheric nitrogen to nitrates, nitrites and ammonia compounds by a process called the nitrogen cycle. Animals derive their nitrogen requirements from plants.