State that urea is formed in the liver from excess amino acids

Urea is formed in the liver from excess amino acids through a process known as the urea cycle. When proteins are metabolized, they are broken down into amino acids, which can be used for various bodily functions. However, when there is an excess of amino acids, the liver converts them into urea to facilitate the excretion of nitrogen waste.Here’s a brief overview of how this process works:

1. Amino Acid Breakdown: Excess amino acids undergo deamination, where the amino group is removed. This process generates ammonia, which is highly toxic to the body.
2. Conversion to Urea: The liver then converts ammonia into urea through a series of biochemical reactions in the urea cycle. This cycle involves several steps that utilize enzymes to combine ammonia with carbon dioxide and other compounds, ultimately producing urea.
3. Excretion: Once formed, urea is released into the bloodstream and transported to the kidneys, where it is excreted from the body in urine.