The Structure of Hemoglobin

Hemoglobin is a protein in red blood cells responsible for transporting oxygen throughout the body. It has a complex structure made up of four subunits, each containing a heme group that can bind to oxygen. These subunits work together, allowing hemoglobin to pick up oxygen in the lungs and release it in tissues where it's needed. The protein's structure is flexible, enabling it to adapt as it binds and releases oxygen efficiently, ensuring our body's cells receive the oxygen necessary for energy and function.