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प्रश्न
Mature RBC in mammals does not have cell organelles.
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उत्तर
The RBCs are devoid of the nucleus, mitochondria ribosome, and endoplasmic reticulum. The absence of these organelles accommodates more haemoglobin thereby maximizing the oxygen-carrying capacity of the cell. Biconcave shape increases the surface area for oxygen binding, loss of mitochondria allows the RBC to transport all the oxygen to tissues, and loss of endoplasmic reticulum allows more flexibility for RBC to move through the narrow capillaries.
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