ANATOMY

Detailed explanation-1: -The majority of water reabsorption that occurs in the nephron is facilitated by the AQPs. Most of the fluid that is filtered at the glomerulus is then reabsorbed in the proximal tubule and the descending limb of the loop of Henle.

Detailed explanation-2: -Under normal circumstances, up to 180 g/day of glucose is filtered by the renal glomerulus and virtually all of it is subsequently reabsorbed in the proximal convoluted tubule. This reabsorption is effected by two sodium-dependent glucose cotransporter (SGLT) proteins.

Detailed explanation-3: -Most of the reabsorption of solutes necessary for normal body function such as amino acids, glucose, and salts takes place in the proximal part of the tubule.

Detailed explanation-4: -When blood is filtered through the glomeruli in the kidneys, glucose is freely filtered into the tubular fluid of the nephron. In a healthy individual, nearly all of this filtered glucose is reabsorbed back into the bloodstream through the proximal tubule of the nephron.