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anygoal [31]
3 years ago
13

URGENT PLEASE

Biology
1 answer:
Mazyrski [523]3 years ago
7 0

Answer:

B

Explanation:

Depolarization occurs by the opening of K+ voltage gated channels that cause K+ to leave the cell down a chemical gradient. This makes the inside of the cell less positive until there's reversal of polarity and eventually the resting potential is generated at -70 mV.

This is helped by ATP dependent Na+-K+ pumps.

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