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3 March, 04:24

During an action potential, which of the following changes significantly? Group of answer choices

a) The concentration gradients for Na + and K+.

b) The number of Na + and K + ions crossing the cell membrane.

c) The membrane potential. The activity of the Na+/K + ATPase.

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  1. 3 March, 04:38
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    The process is ocurring by steps, starting with depolarization.

    1 - Na + permeability > K + permeability

    2 - Vm (membrane potential) approaches ENa + (quilibrium potential for potassium)

    3 - K + permeability > Na + permeability

    4 - Vm (membrane potential) approaches EK + (quilibrium potential for potassium)
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