Answer:
e) Arginine
Explanation:
The Urea Cycle -
Urea cycle also called the TCA cycle , takes place in the ureotelic organisms . It is the cycle of biochemical reactions which helps in the production of urea from ammonia .
The highly toxic ammonia produced is excreted out of the organism's body .
Now, in one of the biochemical reaction , an amino acid arginine is used and helps for the production of urea and ornithine as the products and this step occurs in the cytosol of the cell .
