Suppose that the change in Vm was caused by the entry of
Chapter 24, Problem 24.75(choose chapter or problem)
Suppose that the change in Vm was caused by the entry of Ca2+ instead of Na+. How many Ca2+ ions would have to enter the cell per unit membrane to produce the change? (a) Half as many as for Na+; (b) the same as for Na+; (c) twice as many as for Na+; (d) cannot say without knowing the inside and outside concentrations of Ca2+
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