Final answer:
Buffers are compounds that can absorb OH- or H+ ions to control swings in pH. They help maintain a relatively stable pH by preventing large changes in acidity or alkalinity.
Step-by-step explanation:
Buffers are compounds that can absorb OH- or H+ ions to control swings in pH. They help maintain a relatively stable pH by preventing large changes in acidity or alkalinity. One example of a buffer system in the human body is the bicarbonate system, which helps regulate pH in the blood.