How does the reabsorption of sodium affect the secretion of potassium?
Answer :
Most of the potassium ions in the glomerular filtrate are actively reabsorbed in the proximal convoluted tubule, but some may be secreted in the distal convoluted tubule and collecting duct. During this process the active re absorption of sodium ions out of the tubular fluid under the influence of aldosterone produces a negative charge in the tube, positively charges potassium is attracted to the negatively charged region and move passively through the tubular epithelium into the tubular fluid.
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