Nitrogen cycle Notes: Definitions & Explanations PDF | Download eBooks
Study Nitrogen cycle lecture notes PDF with biology definitions and explanation to study “What is Nitrogen cycle?”. Study nitrogen cycle explanation with biology terms to review biology course for online degree programs.
Nitrogen cycle Definition:
Nitrogen cycle describes transformations of nitrogen and nitrogenous compounds in nature.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Nitrogen cycle Notes:
The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmosphere, terrestrial, and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes. Important processes in the nitrogen cycle include fixation, ammonification, nitrification, and denitrification. The majority of Earth's atmosphere (78%) is atmosphere nitrogen, making it the largest source of nitrogen. However, atmospheric nitrogen has limited availability for biological use, leading to a scarcity of usable nitrogen in many types of ecosystems.
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