The acetylcholine receptor is permeable to both Na+ ions and K+ ions, however, opening of this channel in response to ac

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The acetylcholine receptor is permeable to both Na+ ions and K+ ions, however, opening of this channel in response to acetycholine at the synapse typically only yields a Na+ current. Why? O a. Acetycholine does actually lead to both Na+ and K+ currents. There is no conductance for K+, thus, no current for K+. O b. O c. Resting membrane potential is close to the equilibrium potential for K+. Od. The K+ concentration gradient is much lower for muscle cells. Oe. Only a Na+ current will lead to depolarization of the postsynaptic cell.
At the beginning of the falling phase of the action potential, what is the relative voltage driving force for Na+ and K+? O a. there is equal voltage driving force O b. there is 0 voltage driving force for both O c. sodium higher voltage driving force than potassium O d. potassium higher voltage driving force than sodium
Which of the following molecular characteristics differs between AMPA and NMDA type glutamate receptors? O a. O b. O c. O d. O e. opening of the channel leads to a sodium current glutamate acts as a ligand magnesium blocks the channel current opening of the channel leads to an EPSP receptor is found in the postsynaptic membrane of fast excitatory synapses