With an action potential, which statement is true? a. negative feedback occurs w

Question

With an action potential, which statement is true?

a. negative feedback occurs when threshold is met where voltage-gated Na+channels open, and positive feedback occurs when voltage-gated K+ channels open

b. positive feedback occurs when threshold is met where voltage-gated Na+channels open, and positive feedback occurs when voltage-gated K+ channels open

c. negative feedback occurs when threshold is met where voltage-gated Na+channels open, and negative feedback occurs when voltage-gated K+ channels open

d. positive feedback occurs when threshold is met where voltage-gated Na+channels open, and negative feedback occurs when voltage gated K+ channels open

Explanation / Answer

Answer D

Positive feedback mechanism cause opening of more sodium gated channel which causes the membrane potential to become more positive.

In negative feedback mechanism the potacium gated channel is open which allow the K+ to leak across the cell membrabe

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