While glucose is filtered out at the glomerulus, none is excreted in the urine. What happens to the glucose?
A. It is reabsorbed at the distal convoluted tubule.
B. It is secreted at the distal convoluted tubule.
C. It is reabsorbed from the collecting duct.
D. It is reabsorbed at the proximal convoluted tubule.
E. It is secreted at the proximal convoluted tubule.
Answer: D
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