5 Questions
What are the two forms of dissolved inorganic nitrogen in water?
The two forms of dissolved inorganic nitrogen in water are nitrate and ammonium.
What is the process of nitrogen fixation and what organisms are responsible for it?
Nitrogen fixation is the process of converting atmospheric nitrogen (N2 gas) into a usable form by certain bacteria, such as cyanobacteria and archaea. It is done by the nitrogenase enzyme and is highly energy consuming.
What are the organic forms of nitrogen mentioned in the text?
The organic forms of nitrogen mentioned in the text include amino acids, nucleic acids, proteins, and urea.
What is the significance of heterocysts in cyanobacteria?
Heterocysts in cyanobacteria are specialized cells for nitrogen fixation. They provide an anaerobic environment for nitrogenase activity and are essential for the process of nitrogen fixation.
What are the key processes in the nitrogen cycle?
The key processes in the nitrogen cycle are ammonification, nitrification, and denitrification.
Test your knowledge of nitrogen, sulfur, phosphorus, and other nutrients with this quiz. Explore the impact of ammonium, sulfide, nitrate, and silicate on water quality, and learn about the various nutrient cycles and forms of dissolved inorganic nitrogen.
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