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Answer :
Structure of nephron :
Each nephron is composed of two parts. First one is called Bowman’s capsule.The Bowman’s capsule is a cup-shaped bag at its upper end which contains a bundle of blood capillaries which is called glomerulus. Glomerulus has two parts in which one part is attached to Renal Artery responsible for bringing in the dirty blood(Containing Urea) while the other end comes out of Bowman's Capsule containing the clean blood.
The other part of the nephron is coiled where the substances which are required by the body like sugar (glucose), amino acid, ions and excess water are reabsorbed. The substance remaining in the nephron is mainly urine ,which contains dissolved nitrogenous waste like urea and uric acid, excess salts and water.
Functions of nephron :