How does protein help maintain blood pH?

Proteins help maintain blood pH by acting as buffers, which means they can accept or donate hydrogen ions (H+) as needed to stabilize acidity or alkalinity. This buffering capacity is primarily due to the amino acid side chains in proteins that can interact with H+ ions. Additionally, proteins like hemoglobin in red blood cells can bind to carbon dioxide and help regulate its concentration in the blood, further contributing to pH balance. Overall, proteins play a crucial role in maintaining the homeostasis of blood pH within a narrow range essential for bodily functions.