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Biology, 21.07.2019 19:30 shirleybuck
The "dark current" of photoreceptors refers to the exit of k+ out of the cell when light is not hitting the cell. the exit of na+ and ca2+ out of the cell when light is not hitting the cell. the entry of k+ into the cell when light is not hitting the cell. the entry of na+ and ca2+ into the cell when light is not hitting the cell.
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