Which structure reabsorbs 25 percent of the water in the nephron?

The nephron loop reabsorbs 25% of the water in the nephron. Reabsorption of water is a passive process, it takes place by the process of osmosis. In most of the nephron, water reabsorption is unregulated and coupled to solute reabsorption. The first that is responsible for water reabsorption is the proximal convoluted tubule.