The main function of the proximal tubule of the glomerulus is:

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Quizplus · Accepted Answer

The main function of the proximal tubule of the glomerulus is reabsorption of nutrients. This includes glucose, amino acids, and electrolytes such as sodium, potassium, and chloride. The proximal tubule accounts for the majority of reabsorption in the nephron, and plays a critical role in conserving valuable nutrients and maintaining fluid balance in the body. It does not primarily involve secretion of hydrogen ions or exchange of water and sodium, although some reabsorption of water also occurs in this segment of the nephron.

The Main Function of the Proximal Tubule of the Glomerulus