Metabolic wastes or excrements are substances left over from metabolic processes (such as cellular respiration) which cannot be used by the organism (they are surplus or toxic), and must therefore be excreted.

True metabolic wastes are excreted by means of the flow of bile from the liver into the intestine. The destruction of cells in animals produces bile pigments—residues of hemoglobin and other pigments—which may be considered to be the principal metabolic wastes eliminated via the alimentary canal.

2021年1月15日 · The excretory system consists of the organs that remove metabolic wastes from the body. In humans, this includes the removal of liquid nitrogenous waste in the form of urine and solid wastes especially from the breakdown of hemoglobin.

2024年10月12日 · These byproducts, known as metabolic waste, are not only inevitable but also potentially harmful if not properly managed and removed from the body. Understanding what metabolic waste is, how it’s produced, and how the body eliminates it …

Metabolic wastes are the substances leftover from metabolic processes (like cellular respiration) which are not absorbed by the organism and hence they should be excreted. Metabolic wastes can be categorized into gases, liquids, solids, and heat.

All forms of metabolic waste – such as adenosine, lactate, CO2, urea, and ammonia – exhibit concentration-dependent toxicity, and their elimination from the organism by degradation, conversion, or excretion is critical to staying healthy and alive.

Metabolic waste can be either liquid, or soluble waste, or gaseous waste. Solid or insoluble waste is removed from the body as feces. Liquid or soluble waste is removed from the body as urine and sweat. Gaseous waste is removed from the body when we exhale.