Question:

The maximum amount of electrolytes and water ($70 - 80$ percent) from the glomerular filtrate is reabsorbed in which part of the nephron?

Updated On: Jul 13, 2024
  • Ascending limb of loop of Henle
  • Distal convoluted tubule
  • Proximal convoluted tubule
  • Descending limb of loop of Henle
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The Correct Option is C

Solution and Explanation

During glomerular filtration in kidneys, ultrafiltration of blood occurs i.e., almost all the constituents of plasma except proteins pass onto the Bowman's capsule. Then nearly 99% of the filtrate is reabsorbed by renal tubules. Proximal convoluted tubules shows maximum reabsorption and nearly all the essential nutrients and 70-80% of electrolytes and, water are reabsorbed by this segment.
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Concepts Used:

Mechanism Human Excretory System

Excretory System Organs

Kidneys- Kidneys are bean-shaped structures located on either side of the backbone. In human each adult kidney size is 10-12 cm with a width of 5-7 cm and weighs around 120-170g and it have an inner concave structure.

Ureter - A pair of thin muscular tubes called the ureter. Ureter comes out of each kidney extending from the renal pelvis and it carries urine from the kidney to the urinary bladder.

Urinary Bladder - muscular sac-like structure which stores urine. The urinary bladder is emptied by the process of micturition.

Urethra- This tube comes out from the urinary bladder and helps to expel urine out of the body. It acts as the common route for sperms and urine in males.