What percentage of electrolytes and water are reabsorbed by PCT?

Step-by-step solution

Proximal Convoluted Tubule (PCT): PCT is lined by simple cuboidal brush border epithelium which increases the surface area for reabsorption. Nearly all of the essential nutrients, and 70-80 percent of electrolytes and water are reabsorbed by this segment. PCT also helps to maintain the pH and ionic balance of the body fluids by selective secretion of hydrogen ions and ammonia into the filtrate and by absorption of HCO3– from it. Henle’s Loop: Reabsorption is minimum in its ascending limb. However, this region plays