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How do red blood cell respire without a nucleus?

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Red blood cells are initially produced in the bone marrow with a nucleus. They then undergo a process known as enucleation in which their nucleus is removed. Enucleation occurs roughly when the cell has reached maturity. read more

Red blood cells are initially produced in the bone marrow with a nucleus. They then undergo a process known as enucleation in which their nucleus is removed. Enucleation occurs roughly when the cell has reached maturity. The absence of a nucleus is an adaptation of the red blood cell for its role. read more

Hi, We actually wonder, even though they have a shorter lifespan than other varieties of cells, I would think that 120 days without a nucleus is still quite a long time. read more

Red blood cells have no nucleus, because most of their bulk is made up of hemoglobin, a compound that carries gases, such as oxygen and carbon dioxide. In fact, about a third of a red blood cell is dedicated to hemoglobin alone, so no room remains for a nucleus or many of the structures that other cells have. read more

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