NEETZoologyExcretory Products and their Elimination
What are the major forms of nitrogenous waste excreted by animals?
Options
- AUrea, uric acid and carbon dioxide
- BAmmonia, urea and uric acid
- CAmmonia, uric acid and carbon dioxide
- DUrea, uric acid and water
Correct answer
B. Ammonia, urea and uric acid
Step-by-step solution
Animals accumulate ammonia, urea, uric acid, carbon dioxide, water and ions like Na+, K+, Cl– , phosphate, sulphate, etc., either by metabolic activities or by other means like excess ingestion. These substances have to be removed totally or partially. In this chapter, you will learn the mechanisms of elimination of these substances with special emphasis on common nitrogenous wastes. Ammonia, urea and uric acid are the major forms of nitrogenous wastes excreted by the animals . Ammonia is the most toxic form and re