Now, once they are reabsorbed by the cell, they move across the cell and they basically move across the bacillateral membrane this side of our cell, they move into our instertuum, and then they move into the peritubular capillaries, where they basically move into our bloodstream system. At the same time, the h and the bicarbonate ions move into our filtrate, and they are carried all the way across this region, into the proximal stray tubule, along the loop of Henley, then along our distal convoluted tubule, eventually along our collecting duct, which empties it out into our ureter, that travels into the urinary bladder, where it is stored. Eventually, it is secreted by our body. So this is the function of our proximal convoluted tubule. So we conclude that what is reabsorbed back into our bloodstream from our filtrate are sodium ions, as well as potassium and chloride ions, water, glucose and amino acids. Now, why do we want to reabsorb these in the first place?