AP BIOLOGY

Detailed explanation-1: -Urea is produced when foods containing protein, such as meat, poultry, and certain vegetables, are broken down in the body. Urea is carried in the bloodstream to the kidneys, where it is removed along with water and other wastes in the form of urine.

Detailed explanation-2: -The liver produces several chemicals (enzymes) that change ammonia into a form called urea, which the body can remove in the urine. If this process is disturbed, ammonia levels begin to rise.

Detailed explanation-3: -The liver-the detoxification organ This series of reactions is called the ornithine cycle. The urea and water are released from the liver cells to the bloodstream and transported to the kidneys where the blood is filtered and the urea is passed out of the body in the urine.

Detailed explanation-4: -Urea production occurs in the liver and is regulated by N-acetylglutamate. Urea is then dissolved into the blood (in the reference range of 2.5 to 6.7 mmol/L) and further transported and excreted by the kidney as a component of urine.

Detailed explanation-5: -Urea is a nitrogenous waste produced as a by-product of the metabolism of proteins. This process takes place in the liver. It does not occur in the kidney.