Urine is a liquid by-product of metabolism in humans and in many other animals. In placental mammals, urine flows from the kidneys through the ureters to the urinary bladder and exits the urethra through the penis or vulva during urination. In …

Jan 28, 2020 · Urine is a liquid produced by the kidneys to remove waste products from the bloodstream. Human urine is yellowish in color and variable in chemical composition, but here is a list of its primary components.

Jan 14, 2025 · Urine is liquid waste that your kidneys make to remove excess fluids and waste products from your body. It mostly consists of water, but it also contains waste products, salt and electrolytes. If you’re drinking enough fluids, your urine should be light yellow and have a …

Jan 26, 2019 · WHAT IS URINE? Urine is basically a “filtrate” of your blood that begins to form once blood loaded with toxic end-products of cellular metabolism from across the body reaches the kidney via sophisticated tissue-filtration systems.

Dec 31, 2024 · Urine, liquid or semisolid solution of metabolic wastes and certain other, often toxic, substances that the excretory organs withdraw from the circulatory fluids and expel from the body. The composition of urine tends to mirror the water needs of the organism.

Urine is a liquid byproduct of the body secreted by the kidneys through a process called urination and excreted through the urethra. The normal chemical composition of urine is mainly water content, but it also includes nitrogenous molecules, such as urea, as well as creatinine and other metabolic waste components.

Urine is an aqueous solution of greater than 95% water. Other constituents include urea, chloride, sodium, potassium, creatinine and other dissolved ions, and inorganic and organic compounds. Urea is a non-toxic molecule made of toxic ammonia and carbon dioxide.

Jan 10, 2023 · Urine is a liquid waste material produced in and excreted by the body. Secreted by the renal tubules, it accumulates in the urinary bladder and is excreted via the urethra. While it is composed...

Sep 5, 2013 · Scientists have laid out the entire chemical composition of human urine, revealing that more than 3,000 compounds are found in the fluid, and have published it all in an online database.

Dec 25, 2023 · Urea, a compound that you might hear about in biology class, is a major constituent of urine. It is produced in the liver as a byproduct of protein metabolism. When proteins are broken down, ammonia is formed, which is toxic to the body. The liver converts this ammonia into urea, a less harmful substance, which is then excreted in urine.