Give the function of the red blood cell in the process of gaseous exchange?

Red blood cells (RBCs) play a crucial role in gaseous exchange by transporting oxygen from the lungs to body tissues and carrying carbon dioxide from the tissues back to the lungs. They contain hemoglobin, a protein that binds oxygen in high concentrations, allowing efficient oxygen delivery. Additionally, hemoglobin facilitates the transport of carbon dioxide, which is converted to bicarbonate in the blood, helping maintain acid-base balance during respiration. This dual function is essential for sustaining cellular metabolism and overall homeostasis.