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The depolarization of the axonal membrane is due to:

1. Influx of sodium ions

2. Efflux of sodium ions

3. Influx of potassium ions

4. Efflux of the potassium ions

 76%
From NCERT
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Immediately after an action potential has peaked, which cellular gates open?

1. Sodium
2. Chloride
3. Calcium
4. Potassium

From NCERT
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During the propagation of a nerve impulse, the action potential results from the movement of

1. K+ ions from extracelular fluid to intracellular fluid

2. Na+ ions from intracellular fluid to extracellular fluid

3. K+ ions from intracellular fluid to extracellular fluid

4. Na+ ions from extracellular fluid to intracellular fluid

 70%
From NCERT
NEET - 2008
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Na+/K+ pump is associated with

1. passive transport

2. active transport

3. osmosis

4. imbibition.

 88%
From NCERT
AIIMS - 2012
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When neuron is resting, which of the following is false with respect to that

(1) It is not conducting any impulse

(2) Axonal membrane is more permeable to potassium ions

(3) Axonal membrane won't allow any flow of sodium ions across it

(4) Membrane is impermeable to negatively charged proteins

 56%
From NCERT
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