liver
Urea
No. Urea is.
Urea
The molecular formula of the urea is NH2-CO-NH2. The proteins are long chain of many amino acids. Urea is formed out of metabolism ( break down) of the amino acids.
Urea
When a person is starving, their body breaks down protein for energy, leading to an increase in urea production as a byproduct of protein metabolism. Urea is then released into the blood and its concentration rises due to the increased breakdown of proteins for energy in the absence of sufficient food intake.
carbohydrates
Cells mostly metabolize sugars, fats, and protiens into energy and other useful compounds. Carbon dioxide, water, heat, and urea, are formed as the principal byproducts of this process.
Chapter 9 Medical Terminology proves UREA is the major waste product of protein metabolism.
creatinine
"Kidneys" ^ this is incorrect. Urea is a byproduct of protein metabolism. In the GI, blood proteins are broken down into ammonia, it is then absorbed and the liver then converts it to Urea. It is then released into the blood stream where the Kidney's take it up and eliminate it. Urea is then eliminated by the kidney's, but not produced by it. its synthesized during the metabolic activity of the body. and is purified form the body in kidnies. ^so basically, liver makes urea not the kidneys
Blood urea nitrogen test (BUN). Urea is a by-product of protein metabolism. This waste product is formed in the liver, then filtered from the blood and excreted in the urine by the kidneys. The BUN test measures the amount of nitrogen.