Ключевые слова: alpha, anatomy diagram, anatomy of hemoglobin, atoms, beta, biochemistry, biological molecules, biology, biology study, blood cells, blood protein, blood science, body, chain, colorful, diagram, drawing, education, educational, group, hand drawn, health, healthcare education, healthcare training, healthy, heme, heme function, hemoglobin, hemoglobin diagram, human, human physiology, illustration, iron, isolated, labeled, medical, medical illustration, medicine, molecular biology, molecular education, molecule, oxygen carriers, people, poster, protein, protein complex, raster, science, structure, white background,