Many people confuse the process of excretion with the removal of waste products of digestion. Excretion, however, is actually the removal of all the waste products produced by the cells of the body.
Urea is produced in the liver as a waste product of protein metabolism and is then transported to the kidneys for excretion in the urine. It is not stored in the body, but rather continually produced and excreted as part of the body's waste removal process.
The respiratory system and the circulatory system work together to remove waste products of cellular respiration from cells. During respiration, carbon dioxide is produced as a waste product, which diffuses from cells into the bloodstream. The circulatory system then transports the carbon dioxide to the lungs where it is exhaled, completing the process of waste removal.
Waste products from cells are carried away by the bloodstream to the kidneys or liver for processing and elimination from the body. The circulatory system plays a crucial role in transporting these waste products to the excretory organs for removal.
Nothing alive can live in a pool of it's own waste products ... that includes the cells of your body.
The circulatory system collects blood from different parts of the body and carries it to the kidneys, where waste products produced by cells are removed. The kidneys filter the blood to remove waste products, which are then excreted from the body in urine.
The main organs involved in removing waste from the body cells are the kidneys, which filter waste from the blood to produce urine, and the liver, which processes and eliminates toxins from the bloodstream. Other organs that play a role in waste removal include the intestines, which excrete solid waste, and the lungs, which eliminate carbon dioxide through breathing.
excretion
The gas produced by cells and exhaled from the lungs is called carbon dioxide. It is a waste product of cellular respiration and is removed from the body through the process of breathing.
Excretion is the casting off of waste products. The excretory system is the system in the body that collects waste produced by the cells and removes the waste from the body. In the human body, excretion occurs in the kidneys (which filtered out most waste products from the blood stream), the liver (which only eliminates a couple of waste products), and the skin.
Urine, which is composed of dissolved wastes and excess water or chemical substances from the body and is produced when blood filters through the kidneys.
Cells in the body produce waste compounds such as carbon dioxide, urea, and water as byproducts of metabolic processes. These waste compounds need to be eliminated from the body to maintain proper functioning.