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Question
A resting neuron is
A resting neuron is
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Solution
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B polarized
D -70 mV
A resting neuron is polarized at a membrane potential of -70mV, with greater negative charge inside. When there is a change in the membrane potential with the inside becoming more positive, the neuron is depolarized. If the membrane potential drops to below the normal resting state of -70mV, the neuron is hyperpolarized. Cells do not stay in a state of electrochemical neutrality because there is an uneven distribution of ions across a cell membrane.
B polarized
D -70 mV
A resting neuron is polarized at a membrane potential of -70mV, with greater negative charge inside. When there is a change in the membrane potential with the inside becoming more positive, the neuron is depolarized. If the membrane potential drops to below the normal resting state of -70mV, the neuron is hyperpolarized. Cells do not stay in a state of electrochemical neutrality because there is an uneven distribution of ions across a cell membrane.
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