This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Maximum amount of glucose absorption occurs at: 
Select and explain. 
A. PCT, B. DCT, C. Loop of henle, D. None
A: PCT
Answer: A: PCT 
Explanation: Glucose, amino acids, and bicarbonate are reabsorbed along with Na+ in the early portion of the proximal tubule.