(D) In the resting state,the axonal membrane of a neuron is significantly more permeable to potassium ions $(K^+)$ due to the presence of leak channel

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comparatively more permeable to $K^+$ ions and nearly impermeable to $Na^+$ ions.

(D) In the resting state,the axonal membrane of a neuron is significantly more permeable to potassium ions $(K^+)$ due to the presence of leak channels,while it remains nearly impermeable to sodium ions $(Na^+)$.This differential permeability,combined with the action of the $Na^+-K^+$ pump,helps maintain the resting membrane potential.

Class 11 Biology Neural Control and Coordination Generation and conduction of Nerve Impulse

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When a neuron is in resting state,$i.e.$,not conducting any impulse,the axonal membrane is

AIPMT 2011 All AIPMT

A
comparatively more permeable to $Na^+$ ions and nearly impermeable to $K^+$ ions
B
equally permeable to both $Na^+$ and $K^+$ ions
C
impermeable to both $Na^+$ and $K^+$ ions
D
comparatively more permeable to $K^+$ ions and nearly impermeable to $Na^+$ ions.

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Neural Control and Coordination

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Generation and conduction of Nerve Impulse

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$A$ neuron becomes an electrically charged cell primarily due to the differential permeability and diffusion of which ion?

Medium

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What is a polarised nerve fiber?

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When a neuron is not conducting any impulse,$i.e$.,resting,the axonal membrane is comparatively more permeable to:

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Which of the following statements is/are correct?
$(a)$ The electrical potential difference across the resting plasma membrane is called the resting potential.
$(b)$ $Na^+$ ions are responsible for the generation of an action potential.
$(c)$ $A$ nerve impulse is an action potential.

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Propagation of action potential is very fast in nerve fibres which have

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When a neuron is in resting state,$i.e.$,not conducting any impulse,the axonal membrane is

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$A$ neuron becomes an electrically charged cell primarily due to the differential permeability and diffusion of which ion?

What is a polarised nerve fiber?

When a neuron is not conducting any impulse,$i.e$.,resting,the axonal membrane is comparatively more permeable to:

Which of the following statements is/are correct?$(a)$ The electrical potential difference across the resting plasma membrane is called the resting potential.$(b)$ $Na^+$ ions are responsible for the generation of an action potential.$(c)$ $A$ nerve impulse is an action potential.

Propagation of action potential is very fast in nerve fibres which have

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Which of the following statements is/are correct?
$(a)$ The electrical potential difference across the resting plasma membrane is called the resting potential.
$(b)$ $Na^+$ ions are responsible for the generation of an action potential.
$(c)$ $A$ nerve impulse is an action potential.