what is the biological trend behind this?
They are a waste product of the metabolism of animals
Ammonium
Ammonium ions are a waste product of the metabolism of animals. In fish and aquatic invertebrates, it is excreted directly into the water. In mammals, sharks, and amphibians, it is converted in the urea cycle to urea, because urea is less toxic and can be stored more efficiently.
what group of the periodic table is potassium in Alkali metals what is this metal? They are all shiny, soft, highly reactive metals at standard temperature and pressure and readily lose their outermost electron to form cations with charge +1 what is it on the planet earth? The alkali metals, due to their high reactivity, do not occur naturally in pure form in nature what is its compound? NaCl, NaO, NaS, NaP, NaAs, NaSb, NaBi where is it applied? Lithium is often used in lithium-ion batteries, and lithium oxide can help process silica how is this metal produced and isolated? It is produced by thermal decomposition of lithium peroxide at 300-400°C what are the derivatives and ammonium? The ammonium ion has very similar properties to the heavier alkali metals, acting as an alkali metal intermediate between potassium and rubidium, and is often considered a close relative what is this above mentioned ion? It is a positively charged polyatomic ion with the chemical formula what are its properties based on acid? It is mildly acidic, reacting with Brønsted bases to return to the uncharged ammonia molecule
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Ammonium [SEP] Biology
Ammonium ions are a waste product of the metabolism of animals. In fish and aquatic invertebrates, it is excreted directly into the water. In mammals, sharks, and amphibians, it is converted in the urea cycle to urea, because urea is less toxic and can be stored more efficiently. In birds, reptiles, and terrestrial snails, metabolic ammonium is converted into uric acid, which is solid and can therefore be excreted with minimal water loss. Ammonium is an important source of nitrogen for many plant species, especially those growing on hypoxic soils. However, it is also toxic to most crop species and is rarely applied as a sole nitrogen source.