Multiple Choice
How do transmitters act on the postsynaptic cell at direct chemical synapses?
A) They diffuse across postsynaptic membranes to excite postsynaptic cells.
B) They bind to voltage-gated ion channels to induce postsynaptic current flux.
C) They bind to metabotropic receptors to induce postsynaptic biochemical changes.
D) They bind to ligand-gated ion channels to induce postsynaptic current flux.
E) They bind to extracellular matrix molecules to excite postsynaptic cells.
Correct Answer:

Verified
Correct Answer:
Verified
Q21: Presynaptic inhibition is caused by<br>A) inward movement
Q22: What is the principal excitatory transmitter in
Q23: What is the "synaptic cleft"?<br>A) The nerve
Q24: What is the reversal potential for an
Q25: How do acetycholinesterase drugs (i.e. physostigmine) alter
Q27: At the frog neuromuscular junction, when you
Q28: The reversal potential for the nicotinic acetylcholine
Q29: How does the technique called ionophoresis work?<br>A)
Q30: Describe the mechanism by which auto-inhibition alters
Q31: What is an endplate potential?<br>A) The membrane