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Why are mitochondria absent in RBCs (red blood cells)?

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Mammal red blood cells (erythrocytes) contain neither nucleus nor mitochondria. Traditional theory suggests that the presence of a nucleus would prevent big nucleated erythrocytes to squeeze through these small capillaries. However, nucleus is too small to hinder erythrocyte deformation. read more

RBCs /(Red blood cells) need to remove cell structures like their nucleus, mitochondria, ribosomes upon maturity in order to carry oxygen very efficiently to the cells, utilising space vacant by these cell structures.( red blood cells loose their mitochondria during erythropoiesis at phase 3, when normoblasts eject organelles. read more

Cellular processes. As a result of not containing mitochondria, red blood cellsuse none of the oxygen they transport; instead they produce the energy carrier ATP by the glycolysis of glucose and lactic acid fermentation on the resulting pyruvate. read more

RBCs /(Red blood cells) need to remove cell structures like their nucleus, mitochondria, ribosomes upon maturity in order to carry oxygen very efficiently to the cells, utilising space vacant by these cell structures. read more

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Why are mitochondria absent in RBCs (red blood cells)? - Quora
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