NEETZoologyExcretory Products and their Elimination
What is the main elimination mechanism in our body?
Options
- AThe elimination of water
- BThe elimination of carbon dioxide
- CThe elimination of nitrogenous waste
- DThe elimination of all substances
Correct answer
C. The elimination of nitrogenous waste
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 req