Question: what is completely reabsorbed in the proximal tubule?
Answer: Reabsorption is when water and solutes in the PCT are removed and moved back into the blood. ... The reabsorption in the proximal tubule is isosmotic. In the PCT 65% of water, 100% of glucose, 100% amino acids, 65% of potassium, 65% chloride and 67% of sodium is reabsorbed.