Question

write a neat labelled diagram explain the process of urine formation
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Answer 1

Answer:

Urine is produced by the nephrons of kidneys. Urine formation takes place in 3 steps:

i) Glomerular filtration - Filtration of blood under pressure in the glomerulus. This process ia called ultrafiltration.

ii) Selective Reabsorption - Useful substances from filtrate are reabsorbed by renal tubular cells and returned to blood.

iii) Tubular secretion - Separation of unwanted substances from blood and actively secreting them into the renal filtrate.

The concentrated urine is then taken to urinary bladder through ureters and stored there, until release.(refer attachment)

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Answer 2

The urine formation is takes place in urinary system, where waste called urea from the blood stream. ... Urea together with water and waste substances froms the urin as it passes through the nephrons and down the renal tubules of the kidney. from the kidney urine travels down to thin tubes called ureters to the bladder.