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How urin is formed |
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Answer» Urine formation is carried out by the excretory system. The nephrons play a major role in this. They carry out urine formation in various steps like glomerular filtration, selective reabsorption and tubular secretion.1.\xa0Each nephron has a\xa0glomerulus, the site of blood filtration. The glomerulus is a network of capillaries surrounded by a cuplike structure, the glomerular capsule (or Bowman’s capsule). As blood flows through the glomerulus, blood pressure pushes water and solutes from the capillaries into the capsule through a filtration membrane. This glomerular filtration begins the urine formation process.2.\xa0Inside the glomerulus, blood pressure pushes fluid from capillaries into the glomerular capsule through a specialized layer of cells. This layer, the\xa0filtration membrane, allows water and small solutes to pass but blocks blood cells and large proteins. Those components remain in the bloodstream. The filtrate flows from the glomerular capsule further into the nephron.3.\xa0The resulting filtrate contains waste, but also other substances the body needs: essential ions, glucose, amino acids, and smaller proteins. When the filtrate exits the glomerulus, it flows into a duct in the nephron called the\xa0renal tubule4. Waste ions and hydrogen ions pass from the capillaries into the renal tubule. This process is called\xa0secretion. The secreted ions combine with the remaining filtrate and become urine. The urine flows out of the nephron tubule into a collecting duct. It passes out of the kidney and down to the bladder.Urine\xa0is a liquid or water waste product that passes through your\xa0urinarytract and is expelled from your body through your urethra. It contains 90-95% water. If you talking about lab condutions then it us likley to be(Na)2SO4+KCNO = NH4CNO+k2SO4 1 filtration .2 reabosortion |
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