What is The most important buffer in our plasma is?

The most important buffer in our plasma is bicarbonate (HCO3-). It plays a crucial role in maintaining the acid-base balance in the body by neutralizing excess acids or bases. When carbon dioxide (CO2) is produced in the body, it reacts with water to form carbonic acid, which can dissociate into bicarbonate and hydrogen ions, helping to regulate pH levels effectively. This buffering system is vital for proper physiological function and homeostasis.