ammonia

Urea cycle

...any animal organ isms that produces urea from ammonia (NH4+). This cycle was the first metabolic cycle discovered (Krebs and Hensenleit, 1932). Full article >>> Urea cycle The Urea Cycle is a cycle of biochemical reactions occurring in many animal organ isms that produces urea ...

Urea

...any animal organ isms that produces urea from ammonia (NH4+). This cycle was the first metabolic cycle d... organ isms which can't easily and quickly remove ammonia usually have to convert it to some other substance, like urea or uric acid . Full article >&...

Rhizosphere

...anisms help in the transformation of nitrogen to ammonia with enzymes secreted by these microbe s, which reside in the rhizosphere (a zone that includes the root surface and the soil that adheres to the root after gentle shaking). Full article >>> Rhizosphere . The soils region on and ...

Pericardial cavity

.... Two excretory kidney s below the heart remove ammonia waste from the pericardial cavity into the mantle cavity, from which it will leave the body. Full article >>>...

Oxidation

... Full article >>> Upon oxidation , ammonia applied to croplands is mobilized and can leach into ground and surface waters. Ammonia-oxidizing bacteria also produce the greenhouse gases NO and N2O. Full article >>> Cu2+ + 8Fe2+ + SO42- + 8H+ is a chemical re action The resulta...

Niche

...anammox" process - organ isms that can break down ammonia in wastewater anaerobic ally; this ecological niche has been postulated for many years, ... Full article >>> Niche The place in a biological community occupied by a particular species in its relation to other species . Nicotin...

Deamination

...ion of amino acids results in the production of ammonia (NH3). Ammonia is an extremely toxic base and its accumulation in the body would quickly be fatal. Full article >>> Deamination ap- site (loss of A or G); occurs 1000 times each day in mammals Deamination base analogs (C&ra...

Cloaca

...er it is produced then excreted; mammals convert ammonia to urea while birds and reptiles form uric acid to be excreted with other wastes via their cloaca s. Full article >>> They retain many character s of their therapsid ancestors, such as laying eggs, limbs oriented with humerus a...

Circulatory system

... and hormones and the removal of carbon dioxide, ammonia and other metabolic wastes. Capillaries are the points of exchange between the blood and surrounding tissue s. Full article >>> The circulatory system of insects differs from that of vertebrates and many other invertebrates in...

Bacteria

... nitrifying bacteria those capable of changing ammonia into nitrites, or nitrites into usable nitrates Source: Noland, George B. 1983. General Biology , 11th Edition. St. Louis, MO. C. V. Mosby ... Full article >>> Bacteria lack a nuclear membrane and membrane-bound organelles . Bio...