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Lv 6
? asked in Science & MathematicsBiology · 1 decade ago

Once an action potential is triggered, the first major chemical change is?

A) a reversal of the membrane polarity, with the interior of the cell becoming positively charged.

B) a reversal of the membrane polarity, with the interior of the cell becoming negatively charged.

C) an increase in the negative charges inside the neuron.

D) a sudden rush of potassium into the neuron.

E) a sudden impermeability of the membrane to the transport of ions.

1 Answer

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  • 1 decade ago
    Favorite Answer

    A.

    Due to influx of Na+

    Source(s): electrophysiologist
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