Question

Choose the wrong statement.

• A. In ureotelic organisms, ammonia is not a product metabolism
• B. In mammals some amount of urea may be retained in the kidney matrix of ureotelics of maintain osmolarity
• C. In fishes, kidneys do not play any significant role in the removal of ammonium ions
• D. Urea and uric acid less toxic than ammonia

Answer 1

Answer: (A)

In ureotelic organisms, ammonia is not a product metabolism

The correct answer is A.

In ureotelic animals, ammonia is produced as a product of metabolism, but this ammonia is converted to urea by ornithine cycle in the liver. In this cycle two molecules of Ammonia and one molecule of carbon dioxide and 3 ATP are used in urea formation.