Glucose is found in glomerular filtrate but NOT in the urine because
A. glucose is converted to amino acids in the kidney.
B. kidney cells require glucose because energy is needed for active transport.
C. glucose molecules are too large to pass through the loop of the nephron (loop of Henle).
D. glucose is reabsorbed back into the bloodstream.
E. the kidney stores glucose as glycogen.
Answer: D
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