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Urea is removed from the blood by:

  • A.Heart
  • B.Stomach
  • C.Kidneys
  • D.Spleen

Answer: C

Urea is removed from the blood by the kidneys.

It is made in the liver from the ammonia produced by breaking down surplus amino acids, carried in the blood to the kidneys, filtered out at the glomerulus and excreted in urine. A healthy adult passes about 25 to 30 g of it a day.

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