biology
Why Do Human Red Blood Cells Lack a Nucleus but Have a Cell Membrane?
š” The Answer
- The biconcave shape of red blood cells is maintained by the membrane cytoskeleton.
- Losing the nucleus frees space for hemoglobin, but the membrane remains essential.
- The ruptured membrane causes hemolysis, releasing hemoglobin into plasma.
- Enucleation in mammals allows more flexible deformation through narrow capillaries.
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