A buffer is a substance that minimizes changes in the pH of a solution by neutralizing small amounts of added acid or base. It helps maintain a relatively stable pH level in biological systems, crucial for various biochemical processes.
A measure of the acidity or alkalinity of a solution, typically on a scale from 0 to 14, where 7 is neutral.
A condition occurring when body fluids have excess acidic content, often indicated by a blood pH less than 7.35.
A condition characterized by body fluids having too much base (alkali), often indicated by a blood pH greater than 7.45