ANIMAL PHYSIOLOGY
EXCRETION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
reactants produced from a reaction
|
|
|
waste substances from a chemical reaction
|
|
|
reactants that are used in a chemical reaction
|
Detailed explanation-1: -Metabolic waste is the left over products of both catabolism and anabolism. This waste includes salts, phosphates, sulfates, excess substances, and nitrogenous wastes like urea which are eliminated through urine.
Detailed explanation-2: -Examples of metabolic wastes are:-ammonia, urea, uric acid and creatinine.
Detailed explanation-3: -Metabolic wastes (carbon dioxide, water, oxygen, and nitrogenous compounds) diffuse through the cell membranes of these unicellular organisms into the outside environment.
Detailed explanation-4: -Excretion involves the separation and elimination of metabolic waste products from the body. Various organs are involved in this process: the lungs, gills, skin, etc. The kidneys and their ducts are the major full-time excretory organs and comprise the excretory system.