2 3 2 Explain Why The Removal Of Wastes Is Essential For Con

Any accumulation of waste may be toxic to cells and so metabolic wastes must be removed from the body to maintain homeostasis. If the wastes are not continually removed, their concentrations will increase, thus altering the body’s internal environment – inhibiting enzyme function and reducing the rates of metabolism. Examples – The buildup of nitrogenous wastes such as ammonia increases the pH in cells creating a more alkaline environment. The buildup of carbon dioxide reduces the pH – creating a more acidic environment. These changes to pH in cells, slows down or inhibits enzyme function in metabolism. The accumulation of wastes that do not alter the pH may cause other problems, for example, increased solute concentrations interfere with reaction rates and osmotic imbalance adversely affects membrane functioning.