Because they do not have mitochondria,red blood cells generate a lot of lactate from glycolysis,which they in turn must convert into glucose to meet their energy needs.

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Red blood cells generate lactate from glycolysis because they lack mitochondria, but they do not convert lactate back into glucose. Instead, lactate is transported out of the cells and can be converted back into glucose in the liver through gluconeogenesis.

Because They Do Not Have Mitochondria,red Blood Cells Generate a Lot