Chapter 29, Problem 29.54AP

Interpretation Introduction

Interpretation:

The reactions by which ${\text{HPO}}_{\text{4}}{}^{\text{2-}}\text{and}{\text{HCO}}_{\text{3}}{}^{\text{-}}$ absorb excess ${\text{H}}^{\text{+}}$ from the urine before elimination has to be written.

Concept Introduction:

Composition of urine: It is composed of the products of filtration, minus the substances reabsorbed, plus the secreted substances. Nitrogen containing wastes, water and electrolytes such as ${\text{H}}_{\text{2}}{\text{PO}}_{\text{4}}{}^{\text{2-}}\text{and}{\text{NH}}_{\text{4}}{}^{\text{+}}$ which are excreted to help maintain acid-base balance are also the compositions of urine.