This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Excretory System (Kidney, Bladder) Acid-Base Balance, Subject name: Physiology
[{'content': 'How much % of glucose gets reabsorbed in late PCT? \nSelect and explain. \nA. 2, B. 5, C. 7, D. 10', 'role': 'user'}, {'content': 'Answer: A \nExplanation: -In the first half of the proximal tubule, Na+ is reabsorbed by co-transpo along with glucose, amino acids & other solutes. -IInd half of proximal tubule, Little glucose & few amino acids remain to be absorbed. Instead Na+ is mainly absorbed with chloride ions. Higher concentration of Cl- compared with the early proximal tubule, because in first half when Na+ is getting reabsorbed it takes glucose, amino Acids, HCO3- etc. along with it, leaves higher concentration of Cl- behind . 98 % glucose - reabsorbed in 1st half of PCT 2% glucose - in late PCT.', 'role': 'assistant'}]