Chapter 24.3, Problem 5AYLO

Summary Introduction

To discuss:

The respiratory system buffers the pH.

Introduction:

The buffer resists the changes of the pH in a solution by converting the strong acid to the weak acid or the strong base to the weak base. Physiological as well as chemical buffer systems regulate the stabilization and homeostasis of the body pH.

Physiological buffer: A system stabilizes pH of the body by controlling acids, bases, and carbon dioxide (CO₂) outputs. Examples are the respiratory system and the urinary system. The urinary system needs several hours to days to produce its effect because it can buffer large amount of acid or base. The respiratory system requires few minutes to exert its effect; however, it cannot produce remarkable alteration in the pH when compared to the urinary system.