How will the movement of water affect a cell if it is transferred from a hypotonic solution to a hypertonic solution?
a. the cell wall will dissolve
b. the cell will be unaffected
c. the cell will shrink in size
d. the size will increase and then reduce

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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