2019 · Q89
Which one of the following statements is correct?
General KnowledgeBiology
- AUrea is produced in liver.
- BUrea is produced in blood.
- CUrea is produced from digestion of starch.
- DUrea is produced in lung and kidney.
Explanation
Urea is produced in the liver through the ornithine (urea) cycle, which converts toxic ammonia from protein metabolism into urea. It is then carried by the blood to the kidneys for excretion. It is not produced in the blood, lungs or kidneys, nor from starch digestion. Hence option A is correct.