Puffer fish poison blocks voltage-gated sodium channels like a cork. What effect would this neurotoxin have on the function of neurons?
A) Neurons would depolarize more rapidly.
B) Action potentials would lack a repolarization phase.
C) The absolute refractory period would be shorter than normal.
D) The axon would be unable to generate action potentials.
E) None, because the chemically gated sodium channels would still function.
Answer: D
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