Which of the following positively-charged ions is about 10,000 times more concentrated outside the cell than inside (useful in muscle contraction, and in signal transduction of neurons)? bicarbonate chloride sodium calcium magnesium
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Which of the following positively-charged ions is about 10,000 times more concentrated outside the cell than inside (useful in muscle contraction, and in signal transduction of neurons)?
- bicarbonate
- chloride
- sodium
- calcium
- magnesium
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