Which of these substances is NOT normally secreted into the tubule
A)hydrogen ions
B)potassium ions
C)glucose
D)water molecules

Question

Quizplus · Accepted Answer

Hydrogen ions, potassium ions, and water molecules are all substances that can be secreted into the tubule as part of the process of urine formation. Glucose, however, is typically reabsorbed back into the bloodstream by the tubules, rather than being secreted into the urine.

Which of These Substances Is NOT Normally Secreted into the Tubule