<P> Renal protein reabsorption is the part of renal physiology that deals with the retrieval of filtered proteins, preventing them from disappearing from the body through the urine . </P> <P> Almost all reabsorption takes place in the proximal tubule . Only ~ 1% is left in the final urine . </P> <P> The proteins cross the apical membrane by endocytosis . They are subsequently degraded in lysosomes . The remaining free amino acids are transported across the basolateral membrane by amino acid transporters . </P>

Where does most reabsorption in the kidney occur