Question

Conversion of ammonia into uric acid occurs through

• A. Ornithine cycle
• B. Guanine cycle
• C. Ionosinic pathway(d) Krebs cycle
• D. Krebs cycle

Answer 1

The correct option is A Ornithine cycle

In certain organisms, the ammonia is converted to less toxic form. The ammonia is converted to uric acid through the ornithine cycle which takes place in the liver. The break down of the proteins results in the formation of ammonia. This ammonia is transformed to ornithine and finally to uric acid or urea. The animals which excrete the nitrogenous wastes in the form of uric acid are insects, birds and reptiles.

Thus, the correct answer is option A.