Maximum reabsorption of HCO3 - occurs in
The process of bicarbonate reabsorption occurs predominantly in the proximal tubule (about 90%). The rest occur in the thick ascending limb and in the collecting tubule. All involve hydrogen ion secretionRef: Ganong&;s Review of Medical Physiology, 23rd edition, page no: 680
PCT
DCT
CD
Loop of henle
Renal physiology