Hemoglobin
An iron-containing protein in red blood cells that reversibly binds oxygen.
Hemoglobin is a protein present in red blood cells that carries oxygen from the lungs to body tissues and removes carbon dioxide from body tissues to the lungs for excretion. The structure of hemoglobin is composed of four globin protein chains and four heme groups. Each heme group contains an iron ion that binds with oxygen, allowing hemoglobin to carry it throughout the body.
The function of hemoglobin is crucial for maintaining adequate oxygen levels in our body. If hemoglobin levels are low, it can result in a condition called anemia, which leads to fatigue, weakness, and shortness of breath, among other symptoms. Hemoglobin levels can be affected by various factors such as poor nutrition, blood loss, genetic disorders, and underlying health conditions.
Measuring hemoglobin levels is an important diagnostic tool used in medicine. Hemoglobin levels can be checked through a blood test known as a complete blood count (CBC), which measures the concentration of hemoglobin in the blood. Hemoglobin levels can also be raised through dietary changes, such as increasing the intake of iron-rich foods like spinach and red meat, or through medical treatment, such as iron supplements or blood transfusions.
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