Why do the RBCs lack a nuclei?and does this explain that they are biconcave in shape?
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A mature RBC lacks nucleus, Ribosomes & mitochondria too, this help them to adjust more Hemoglobin(Hb) thus more oxygen.
Binocave shape increases the surface area thus more Hb & more Oxygen.
Binocave shape increases the surface area thus more Hb & more Oxygen.
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The absence of a nucleus is an adaptation of the red blood cell for its role. It allows the red blood cell to contain more hemoglobin and, therefore, carry more oxygen molecules. It also allows the cell to have its distinctive bi-concave shape which aids diffusion.
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