Why Does Selective Reabsorption Occur At The Proximal Convoluted Tubule?

Why Does Selective Reabsorption Occur At The Proximal Convoluted Tubule? Selective reabsorbtion occurs in the PCT (proximal convoluted tubule). The PCT is highly permeable meaning it is easy for molecules to diffuse through it. How does reabsorption occur in the proximal convoluted tubule? Fluid in the filtrate entering the proximal convoluted tubule is reabsorbed into