Question

Characteristics shared by urea, uric acid and ammonia are
a. They are nitrogenous wastes
b. They need a large amount of water for excretion
c. They are equally toxic
d. They are produced in kidneys.

• A. a, c
• B. a, d
• C. a, c, d
• D. a only

Answer 1

The correct option is D a only

The characteristic shared by urea, uric acid and ammonia are they are nitrogenous wastes. In comparison to Ammonia and Urea, uric acid is the least toxic and the least soluble in water. It can be stored in cells and body tissues without any toxic effects and hence needs less water for excretion when compared to Ammonia and urea.

So, the correct answer is 'a only'.