THORAX ABDOMEN AND PELVIS

MEDICAL

LIVER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How are amino acids stored in hepatocytes?
A
As transferrin
B
As hemoglobin
C
As bile salts
D
They are not stored, but exreted as nitrogenous waste
Explanation: 

Detailed explanation-1: -The nitrogen waste that is liberated in this process is converted to urea in the urea acid cycle and eliminated in the urine. In times of starvation, amino acids can be used as an energy source and processed through the Krebs cycle.

Detailed explanation-2: -The urea cycle is the primary metabolic pathway involved in the removal of nitrogenous waste produced from breakdown of protein and other nitrogen containing compounds.

Detailed explanation-3: -The less toxic nitrogenous compound urea is produced together with water. 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.

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