Puffer fish poison blocks voltage-gated sodium channels like a cork. what effect would this neurotoxin have on the function of neurons? neurons would depolarize more rapidly. action potentials would lack a repolarization phase. the absolute refractory period would be shorter than normal. the axon would be unable to generate action potentials. none, because the chemically gated sodium channels would still function.

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04-08-2018
Biology

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Puffer fish poison blocks voltage-gated sodium channels like a cork. what effect would this neurotoxin have on the function of neurons? neurons would depolarize more rapidly. action potentials would lack a repolarization phase. the absolute refractory period would be shorter than normal. the axon would be unable to generate action potentials. none, because the chemically gated sodium channels would still function.

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The correct answer is that the axon would not be able to produce action potentials.

Majorly all the pufferfish comprises of tetrodotoxin, an element that produces foul tasting and is generally lethal to fish. In the case of humans, tetrodotoxin is hazardous, that is, up to 1200 times more poisonous in comparison to cyanide. There is an adequate toxin in one pufferfish to kill 30 adult humans and there is no antidote.