red blood cell

biology
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Also known as: erythrocyte, red corpuscle

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Scientists develop method to study malaria's sticky proteins Nov. 26, 2024, 4:08 PM ET (News-Medical)

red blood cell, cellular component of blood, millions of which in the circulation of vertebrates give the blood its characteristic colour and carry oxygen from the lungs to the tissues. The mature human red blood cell is small, round, and biconcave; it appears dumbbell-shaped in profile. The cell is flexible and assumes a bell shape as it passes through extremely small blood vessels. It is covered with a membrane composed of lipids and proteins, lacks a nucleus, and contains hemoglobin—a red iron-rich protein that binds oxygen. The function of the red cell and its hemoglobin is to carry oxygen from ...(100 of 426 words)