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Jestion 5 Not yet answered Marked out of 3.00 p Flag question Suppose the concentrations of calcium ions (ca) for a cell were 0.8 mM inside and 0.005 mM outside of the cell. If the resting membrane potential were to be set by 2+ the diffusion of Ca ions: 2+ a) The direction of the Ca ion diffusion would be from 2+ The change in free energy of the Ca ions associated with this movement of the ions would be 1. inside to outside / positive 2. inside to outside / negative 3. outside to inside / positive 4. outside to inside / negative Write 1, 2, 3, or 4: b) Using the Nernst equation, calculate the membrane potential set by the Ca ions at body temperature (37°C). AVm = mV