Excretory Products and their Elimination

What “Excretory Products and their Elimination” begins with

EXCRETORY PRODUCTS AND THEIR ELIMINATION 205 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. In this chapter, you will learn the mechanisms of elimination of these substances with special emphasis on common nitrogenous wastes.