pH and Buffers
Published Online: 21 AUG 2001
Copyright © 2001 John Wiley & Sons, Ltd. All rights reserved.
How to Cite
Segel, I. H. and Segel, L. D. 2001. pH and Buffers. eLS. .
- Published Online: 21 AUG 2001
Many biomolecules possess weakly acidic or weakly basic groups whose ionization state can affect both biological function and stability, and many biological processes, such as oxidation–reduction reactions, produce or consume hydrogen ions. The extents of the reactions and the rates at which they proceed depend on the acidity of the reaction environment. Buffers are used to maintain a constant hydrogen ion activity.
- weak acid;
- weak base;
- ionic strength