Included in the list are such biological products as urea, salicylic acid, starch, glue and egg shells.
When boiled with baryta-water it decomposes into urea and ammonia.
In man, in addition to the urea excreted, there is also a little hippuric and uric acid or compounds of these.
urea is decreased in diseases of the liver with destruction of liver substance.
The amount of urea varies considerably, and is evidently under the influence of complicated conditions.
urea, when heated, gives off Ammonia, and becomes Cyanuric acid.
By cold the respiratory function is exalted, and the excretion of urea is diminished.
In the kidneys, it loses water and nitrogenous wastes (urea).
As a general rule, the higher the temperature the greater the amount of urea.
As we have seen, the urea is very slightly lower; but after much exertion the uric acid is increased.
urea u·re·a (yu-rē'ə)
A water-soluble compound that is the major nitrogenous end product of protein metabolism and is the chief nitrogenous component of the urine in mammals and other organisms. Also called carbamide.
The chief nitrogen-containing waste product excreted in the urine of mammals and some fish. It is the final nitrogenous product in the breakdown of proteins by the body, during which amino groups (NH2) are removed from amino acids and converted into ammonium ions (NH4), which are toxic at high concentrations. The liver then converts the ammonium ions into urea. Urea is also made artificially for use in fertilizers and medicine. Chemical formula: CON2H4.