Conversion of ammonia to urea is done by _____ Cycle:
The conversion of ammonia to urea is a vital process in the removal of toxic ammonia from the body. This conversion is done by the urea cycle, also known as the ornithine cycle. In this cycle, ammonia is first converted to carbamoyl phosphate, then to citrulline, and eventually to urea. The urea is then excreted by the kidneys. This process takes place primarily in the liver and helps maintain the body's nitrogen balance.
So, the correct option is (A): Ornithine cycle
| Pair of skeletal parts | Category | |
|---|---|---|
| (a)$\,\,$ | Sternum and ribs$\,\,$ | Axial skeleton |
| (b)$\,\,$ | Clavicle and glenoid cavity$\,\,$ | Pelvic girdle |
| (c)$\,\,$ | Flumerus and ulna$\,\,$ | Appendicular skeleton |
| (d)$\,\,$ | Malleus and stapes$\,\,$ | Ear ossicles |
| Ammonotelic | Ureotelic | Uricotelic | |
|---|---|---|---|
| (a) | Pigeon, humans | Aquatic amphibia, lizards | Cockroach frog |
| (b) | Frog, lizards | Aquatic amphibia humans | Cockroach pigeon |
| (c) | Aquatic animals | Frog, amphibia, humans | Pigeon, lizards, cockroach |
| (d) | Aquatic animals | Cockroach, amphibia, humans | Frog, pigeon, lizards |
| List I | List II | ||
| A | Pons | I | Provides additional space for Neurons, regulates posture and balance. |
| B | Hypothalamus | II | Controls respiration and gastric secretions. |
| C | Medulla | III | Connects different regions of the brain. |
| D | Cerebellum | IV | Neurosecretory cells |
The physiological process of the elimination of metabolic waste from the body is called excretion. The excretory products comprise amino acids, carbon dioxide, urea, uric acid, water, and ammonia. Some of the Molluscs and Echinoderms excrete waste products from the body in the form of amino acids. Ammonia is the foremost excretory product in animals, it is derived from the proteins exists in the food we eat.

Read More: Excretion in Human Beings