A. Imagine that the neuron is held in a culture medium where the concentration gradient for potassium is twice what it is in the normal condition (it is still in the same direction). Which point on the graph above would change the most in this new culture medium and how would it change? B. In the experiment described above, assume the muscle cell is in a separate dish and is exposed to a normal culture medium (no change in potassium). In this case, muscle cell that was the target of the motor neuron would . o contract normally o contract for a longer time than normal o contract for a shorter time than normal o fail to contract

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