Proximal convoluted tubule of nephron is pivotal site for reabsorption of glucose, amino acids, $Na^{+},\ K^{+}$ by active transport. Here, 80% of water is reabsorbed by passive transport.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.