Which of the following is reabsorbed along with sodium in early poion of proximal tubules?
Correct Answer: All of the above
Description: Glucose, amino acids, and bicarbonate are reabsorbed along with Na+ in the early poion of the proximal tubule. Glucose is typical of substances removed from the urine by secondary active transpo. Also know: Normally about 60% of the filtered Na+ is reabsorbed in the proximal tubule, primarily by Na-H exchange. Another 30% is absorbed the Na-2Cl-K cotranspoer in the thick ascending limb of the loop of Henle. Ref: (2012). Chapter 37. Renal Function & Micturition. In Barrett K.E., Boitano S, Barman S.M., Brooks H.L. (Eds), Ganong's Review of Medical Physiology, 24e.
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