Detoxification of ammonia and biosynthesis of urea
... 4. Hydrolytic deamination of AMP in the brain (enzyme – adenosine deaminase) ...
... 4. Hydrolytic deamination of AMP in the brain (enzyme – adenosine deaminase) ...
The bombardier beetle uses an explosive discharge as a defensive
... 2. A hot air balloon is being inflated to its full extent by heating the air inside it. In the final stages of this process, the volume of the balloon changes from 3.5 x 106 L to 4.50 x 106 L by the addition of 160 MJ of energy as heat. Assuming that the balloon expands against a constant pressure o ...
... 2. A hot air balloon is being inflated to its full extent by heating the air inside it. In the final stages of this process, the volume of the balloon changes from 3.5 x 106 L to 4.50 x 106 L by the addition of 160 MJ of energy as heat. Assuming that the balloon expands against a constant pressure o ...
lect5
... Nitrogen compounds in urine Urea - major nitrogen excretion product. NH4+ - produced in the kidney by deamination of glutamine. Reduces body acidity because the process removes protons. ...
... Nitrogen compounds in urine Urea - major nitrogen excretion product. NH4+ - produced in the kidney by deamination of glutamine. Reduces body acidity because the process removes protons. ...
RESPIRATORY AND EXCRETORY SYSTEM REVIEW
... - Alveoli – where gas exchange occurs - surrounded by CAPILLARIES - oxygen diffuses into capillaries, carbon dioxide and water diffuses out of capillaries Breathing – - Inhalation diaphragm contracts (DOWN), rib cage expands - Exhalation diaphragm relaxes (UP), rib cage relaxes Excretion – remov ...
... - Alveoli – where gas exchange occurs - surrounded by CAPILLARIES - oxygen diffuses into capillaries, carbon dioxide and water diffuses out of capillaries Breathing – - Inhalation diaphragm contracts (DOWN), rib cage expands - Exhalation diaphragm relaxes (UP), rib cage relaxes Excretion – remov ...
The Excretory System
... When proteins are broken down into amino acids, during digestion, they travel to the liver to be stored. Excess amino acids are converted to glucose, glycogen, or fat. This conversion produces a toxic substance called ammonia, which when combined with CO2, forms urea. Although Urea is safe to travel ...
... When proteins are broken down into amino acids, during digestion, they travel to the liver to be stored. Excess amino acids are converted to glucose, glycogen, or fat. This conversion produces a toxic substance called ammonia, which when combined with CO2, forms urea. Although Urea is safe to travel ...
Glycogen Metabolism
... is the fate of most of NH3 channeled there. Urea → bloodstream → kidneys → urine ...
... is the fate of most of NH3 channeled there. Urea → bloodstream → kidneys → urine ...
General properties of urea : It is water
... Classically it was the first naturally occurring “organic” compound to be prepared from inorganic compounds traversing for the first time the great divide that appeared to classify all substances known at the time. Evaporation of an aqueous solution of ammonium cyanate to dryness was observed to giv ...
... Classically it was the first naturally occurring “organic” compound to be prepared from inorganic compounds traversing for the first time the great divide that appeared to classify all substances known at the time. Evaporation of an aqueous solution of ammonium cyanate to dryness was observed to giv ...
Urea
Urea or carbamide is an organic compound with the chemical formula CO(NH2)2. The molecule has two —NH2 groups joined by a carbonyl (C=O) functional group.Urea serves an important role in the metabolism of nitrogen-containing compounds by animals, and is the main nitrogen-containing substance in the urine of mammals. It is colorless, odorless solid, highly soluble in water, and practically non-toxic (LD50 is 15 g/kg for rats). Dissolved in water, it is neither acidic nor alkaline. The body uses it in many processes, most notably nitrogen excretion. Urea is widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry.Friedrich Wöhler's discovery in 1828 that urea can be produced from inorganic starting materials was an important conceptual milestone in chemistry. It showed for the first time that a substance previously known only as a byproduct of life could be synthesized in the laboratory without biological starting materials, contradicting the widely held doctrine of vitalism.