Pathology The main driving force for water reabsorp on by the proximal tubule epithelium is A Active reabsorp on of amino acids and glucose B Active reabsorp on of Na+ C Active reabsorp on of water D Pinocytosis 💡 Explanation The main driving force for water reabsorp on by the proximal tubule epithelium is ✓ Correct Answer: B. Active reabsorp on of Na+