Answer:
The proximal convoluted tubule (PCT) of the nephron is the section that performs most of the glucose and water reabsorption in the kidney. The PCT is located in the renal cortex and is the first part of the renal tubule that receives filtrate from the glomerulus. As the filtrate passes through the PCT, it undergoes reabsorption of most of the glucose, amino acids, and bicarbonate ions, as well as about 65% of the filtered water. The reabsorption of these substances is essential for maintaining the body's fluid balance and electrolyte concentrations, and is accomplished through the action of transporters in the cell membranes of the PCT epithelial cells.