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Biology
Human Anatomy
Renal System
The main site of secretion of all substances, except for one, is the proximal convoluted tubule. What is the one substance that is secreted elsewhere?
sodium
protein
potassium
calcium
1 answer
The one substance that is secreted elsewhere is protein. Proteins are primarily secreted in the distal convoluted tubule and the collecting ducts in the nephron.
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