★ Urinary Quiz
Indicate the most abundant cation in the extracellular fluid.
A. K+
B. Na+
C. Cl
D. SO4 2-
Preview next quiz:
Identify the substance that is secreted by the proximal tubule and prevents the pH of urine from becoming too acidic
A. Bicarbonate
B. Salt
C. Glucose
D. Hydrogen ion
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