<prompt> Maximum potassium reabsorption occurs in-Proximal convoluted tubuleDistal convoluted tubuleCortical collecting ductMedullary collecting duct  <response>: Ans. is a i.e., Proximal convoluted tubule Most of the solutes and water are maximally absorbed in proximal tubulei 60-70 of Na is reabsorbed along with 60-70 of Clii 60-70 of K is reabsorbediii 60-70 of water is reabsorbediv All the 100 glucose and amino-acids are absorbedv About 80-90 of bicarbonate is reabsorbedvi 40-50 of urea is reabsorbed 