MICROANATOMY

Detailed explanation-1: -It is a watery, yellowish fluid that is held in the bladder and expelled through the urethra. It includes nitrogen molecules like as urea and other waste products removed from the blood by the kidneys, and it is one of the key processes by which the body removes excess water and salt.

Detailed explanation-2: -It consists of water, urea (from amino acid metabolism), inorganic salts, creatinine, ammonia, and pigmented products of blood breakdown, one of which (urochrome) gives urine its typically yellowish colour.

Detailed explanation-3: -The urea cycle or ornithine cycle converts excess ammonia into urea in the mitochondria of liver cells. The urea forms, then enters the blood stream, is filtered by the kidneys and is ultimately excreted in the urine.

Detailed explanation-4: -The bean-shaped kidneys filter waste products out of the bloodstream and dispose of them by creating urine. Urine is made of these waste products dissolved in water.