This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidneys and Body Fluids, Subject name: Physiology
[{'content': 'Maximum potassium reabsorption occurs in- \nSelect and explain. \nA. Proximal convoluted tubule, B. Distal convoluted tubule, C. Cortical collecting duct, D. Medullary collecting duct', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Proximal convoluted tubule * Most of the solutes and water are maximally absorbed in proximal tubulei) 60-70% of Na+ is reabsorbed along with 60-70% of Clii) 60-70% of K+ is reabsorbediii) 60-70% of water is reabsorbediv) All the (100%) glucose and amino-acids are absorbedv) About 80-90% of bicarbonate is reabsorbedvi) 40-50% of urea is reabsorbed", 'role': 'assistant'}]