If the tubular maximum for a particular amino acid is 200 mg/100 ml and the concentration of that amino acid in the blood is 100 mg/100 ml, the amino acid
A. will be actively secreted into the filtrate.
B. will be completely reabsorbed by the tubule cells.
C. will appear in the urine.
D. will not appear in the urine.
E. None of these choices is correct.
Answer: B. will be completely reabsorbed by the tubule cells.